Update to v4.19 kernel headers.

Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
diff --git a/libc/kernel/uapi/linux/fpga-dfl.h b/libc/kernel/uapi/linux/fpga-dfl.h
new file mode 100644
index 0000000..bf9a7c7
--- /dev/null
+++ b/libc/kernel/uapi/linux/fpga-dfl.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _UAPI_LINUX_FPGA_DFL_H
+#define _UAPI_LINUX_FPGA_DFL_H
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#define DFL_FPGA_API_VERSION 0
+#define DFL_FPGA_MAGIC 0xB6
+#define DFL_FPGA_BASE 0
+#define DFL_PORT_BASE 0x40
+#define DFL_FME_BASE 0x80
+#define DFL_FPGA_GET_API_VERSION _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 0)
+#define DFL_FPGA_CHECK_EXTENSION _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 1)
+#define DFL_FPGA_PORT_RESET _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 0)
+struct dfl_fpga_port_info {
+  __u32 argsz;
+  __u32 flags;
+  __u32 num_regions;
+  __u32 num_umsgs;
+};
+#define DFL_FPGA_PORT_GET_INFO _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 1)
+struct dfl_fpga_port_region_info {
+  __u32 argsz;
+  __u32 flags;
+#define DFL_PORT_REGION_READ (1 << 0)
+#define DFL_PORT_REGION_WRITE (1 << 1)
+#define DFL_PORT_REGION_MMAP (1 << 2)
+  __u32 index;
+#define DFL_PORT_REGION_INDEX_AFU 0
+#define DFL_PORT_REGION_INDEX_STP 1
+  __u32 padding;
+  __u64 size;
+  __u64 offset;
+};
+#define DFL_FPGA_PORT_GET_REGION_INFO _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 2)
+struct dfl_fpga_port_dma_map {
+  __u32 argsz;
+  __u32 flags;
+  __u64 user_addr;
+  __u64 length;
+  __u64 iova;
+};
+#define DFL_FPGA_PORT_DMA_MAP _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 3)
+struct dfl_fpga_port_dma_unmap {
+  __u32 argsz;
+  __u32 flags;
+  __u64 iova;
+};
+#define DFL_FPGA_PORT_DMA_UNMAP _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 4)
+struct dfl_fpga_fme_port_pr {
+  __u32 argsz;
+  __u32 flags;
+  __u32 port_id;
+  __u32 buffer_size;
+  __u64 buffer_address;
+};
+#define DFL_FPGA_FME_PORT_PR _IO(DFL_FPGA_MAGIC, DFL_FME_BASE + 0)
+#endif