Update to android-mainline kernel headers v5.4.

Update generate_uapi_headers.sh to checkout the android mainline
kernel. Also, add a small modification to look for the kernel directory
in common not linux-stable.

Remove deprecated android headers from android/uapi/linux. Also,
remove f_accessory.h since it's in the android mainline kernel.

Test: Builds and runs on walleye.
Change-Id: Ia371305e19f56e6bcc2db6d5b4d299819f07ffc6
diff --git a/libc/kernel/uapi/misc/xilinx_sdfec.h b/libc/kernel/uapi/misc/xilinx_sdfec.h
new file mode 100644
index 0000000..8dde40d
--- /dev/null
+++ b/libc/kernel/uapi/misc/xilinx_sdfec.h
@@ -0,0 +1,131 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __XILINX_SDFEC_H__
+#define __XILINX_SDFEC_H__
+#include <linux/types.h>
+#define XSDFEC_LDPC_SC_TABLE_ADDR_BASE (0x10000)
+#define XSDFEC_LDPC_SC_TABLE_ADDR_HIGH (0x10400)
+#define XSDFEC_LDPC_LA_TABLE_ADDR_BASE (0x18000)
+#define XSDFEC_LDPC_LA_TABLE_ADDR_HIGH (0x19000)
+#define XSDFEC_LDPC_QC_TABLE_ADDR_BASE (0x20000)
+#define XSDFEC_LDPC_QC_TABLE_ADDR_HIGH (0x28000)
+#define XSDFEC_SC_TABLE_DEPTH (XSDFEC_LDPC_SC_TABLE_ADDR_HIGH - XSDFEC_LDPC_SC_TABLE_ADDR_BASE)
+#define XSDFEC_LA_TABLE_DEPTH (XSDFEC_LDPC_LA_TABLE_ADDR_HIGH - XSDFEC_LDPC_LA_TABLE_ADDR_BASE)
+#define XSDFEC_QC_TABLE_DEPTH (XSDFEC_LDPC_QC_TABLE_ADDR_HIGH - XSDFEC_LDPC_QC_TABLE_ADDR_BASE)
+enum xsdfec_code {
+  XSDFEC_TURBO_CODE = 0,
+  XSDFEC_LDPC_CODE,
+};
+enum xsdfec_order {
+  XSDFEC_MAINTAIN_ORDER = 0,
+  XSDFEC_OUT_OF_ORDER,
+};
+enum xsdfec_turbo_alg {
+  XSDFEC_MAX_SCALE = 0,
+  XSDFEC_MAX_STAR,
+  XSDFEC_TURBO_ALG_MAX,
+};
+enum xsdfec_state {
+  XSDFEC_INIT = 0,
+  XSDFEC_STARTED,
+  XSDFEC_STOPPED,
+  XSDFEC_NEEDS_RESET,
+  XSDFEC_PL_RECONFIGURE,
+};
+enum xsdfec_axis_width {
+  XSDFEC_1x128b = 1,
+  XSDFEC_2x128b = 2,
+  XSDFEC_4x128b = 4,
+};
+enum xsdfec_axis_word_include {
+  XSDFEC_FIXED_VALUE = 0,
+  XSDFEC_IN_BLOCK,
+  XSDFEC_PER_AXI_TRANSACTION,
+  XSDFEC_AXIS_WORDS_INCLUDE_MAX,
+};
+struct xsdfec_turbo {
+  __u32 alg;
+  __u8 scale;
+};
+struct xsdfec_ldpc_params {
+  __u32 n;
+  __u32 k;
+  __u32 psize;
+  __u32 nlayers;
+  __u32 nqc;
+  __u32 nmqc;
+  __u32 nm;
+  __u32 norm_type;
+  __u32 no_packing;
+  __u32 special_qc;
+  __u32 no_final_parity;
+  __u32 max_schedule;
+  __u32 sc_off;
+  __u32 la_off;
+  __u32 qc_off;
+  __u32 * sc_table;
+  __u32 * la_table;
+  __u32 * qc_table;
+  __u16 code_id;
+};
+struct xsdfec_status {
+  __u32 state;
+  __s8 activity;
+};
+struct xsdfec_irq {
+  __s8 enable_isr;
+  __s8 enable_ecc_isr;
+};
+struct xsdfec_config {
+  __u32 code;
+  __u32 order;
+  __u32 din_width;
+  __u32 din_word_include;
+  __u32 dout_width;
+  __u32 dout_word_include;
+  struct xsdfec_irq irq;
+  __s8 bypass;
+  __s8 code_wr_protect;
+};
+struct xsdfec_stats {
+  __u32 isr_err_count;
+  __u32 cecc_count;
+  __u32 uecc_count;
+};
+struct xsdfec_ldpc_param_table_sizes {
+  __u32 sc_size;
+  __u32 la_size;
+  __u32 qc_size;
+};
+#define XSDFEC_MAGIC 'f'
+#define XSDFEC_START_DEV _IO(XSDFEC_MAGIC, 0)
+#define XSDFEC_STOP_DEV _IO(XSDFEC_MAGIC, 1)
+#define XSDFEC_GET_STATUS _IOR(XSDFEC_MAGIC, 2, struct xsdfec_status)
+#define XSDFEC_SET_IRQ _IOW(XSDFEC_MAGIC, 3, struct xsdfec_irq)
+#define XSDFEC_SET_TURBO _IOW(XSDFEC_MAGIC, 4, struct xsdfec_turbo)
+#define XSDFEC_ADD_LDPC_CODE_PARAMS _IOW(XSDFEC_MAGIC, 5, struct xsdfec_ldpc_params)
+#define XSDFEC_GET_CONFIG _IOR(XSDFEC_MAGIC, 6, struct xsdfec_config)
+#define XSDFEC_GET_TURBO _IOR(XSDFEC_MAGIC, 7, struct xsdfec_turbo)
+#define XSDFEC_SET_ORDER _IOW(XSDFEC_MAGIC, 8, unsigned long)
+#define XSDFEC_SET_BYPASS _IOW(XSDFEC_MAGIC, 9, bool)
+#define XSDFEC_IS_ACTIVE _IOR(XSDFEC_MAGIC, 10, bool)
+#define XSDFEC_CLEAR_STATS _IO(XSDFEC_MAGIC, 11)
+#define XSDFEC_GET_STATS _IOR(XSDFEC_MAGIC, 12, struct xsdfec_stats)
+#define XSDFEC_SET_DEFAULT_CONFIG _IO(XSDFEC_MAGIC, 13)
+#endif