Update to kernel headers v5.3.2.

Test: Builds and run unit tests on taimen/cuttlefish.
Change-Id: I6ebd8f179d159ac974555e8edca588083e8081b3
diff --git a/libc/kernel/uapi/linux/isst_if.h b/libc/kernel/uapi/linux/isst_if.h
new file mode 100644
index 0000000..322f70d
--- /dev/null
+++ b/libc/kernel/uapi/linux/isst_if.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 __ISST_IF_H
+#define __ISST_IF_H
+#include <linux/types.h>
+struct isst_if_platform_info {
+  __u16 api_version;
+  __u16 driver_version;
+  __u16 max_cmds_per_ioctl;
+  __u8 mbox_supported;
+  __u8 mmio_supported;
+};
+struct isst_if_cpu_map {
+  __u32 logical_cpu;
+  __u32 physical_cpu;
+};
+struct isst_if_cpu_maps {
+  __u32 cmd_count;
+  struct isst_if_cpu_map cpu_map[1];
+};
+struct isst_if_io_reg {
+  __u32 read_write;
+  __u32 logical_cpu;
+  __u32 reg;
+  __u32 value;
+};
+struct isst_if_io_regs {
+  __u32 req_count;
+  struct isst_if_io_reg io_reg[1];
+};
+struct isst_if_mbox_cmd {
+  __u32 logical_cpu;
+  __u32 parameter;
+  __u32 req_data;
+  __u32 resp_data;
+  __u16 command;
+  __u16 sub_command;
+  __u32 reserved;
+};
+struct isst_if_mbox_cmds {
+  __u32 cmd_count;
+  struct isst_if_mbox_cmd mbox_cmd[1];
+};
+struct isst_if_msr_cmd {
+  __u32 read_write;
+  __u32 logical_cpu;
+  __u64 msr;
+  __u64 data;
+};
+struct isst_if_msr_cmds {
+  __u32 cmd_count;
+  struct isst_if_msr_cmd msr_cmd[1];
+};
+#define ISST_IF_MAGIC 0xFE
+#define ISST_IF_GET_PLATFORM_INFO _IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *)
+#define ISST_IF_GET_PHY_ID _IOWR(ISST_IF_MAGIC, 1, struct isst_if_cpu_map *)
+#define ISST_IF_IO_CMD _IOW(ISST_IF_MAGIC, 2, struct isst_if_io_regs *)
+#define ISST_IF_MBOX_COMMAND _IOWR(ISST_IF_MAGIC, 3, struct isst_if_mbox_cmds *)
+#define ISST_IF_MSR_COMMAND _IOWR(ISST_IF_MAGIC, 4, struct isst_if_msr_cmds *)
+#endif