Update to v5.0 kernel headers.

Test: Builds and boots on taimen.
Change-Id: I13843bf1ab30ea89a50852adc88f2cba8401bded
diff --git a/libc/kernel/uapi/linux/android/binderfs.h b/libc/kernel/uapi/linux/android/binderfs.h
new file mode 100644
index 0000000..d58c333
--- /dev/null
+++ b/libc/kernel/uapi/linux/android/binderfs.h
@@ -0,0 +1,31 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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_BINDERFS_H
+#define _UAPI_LINUX_BINDERFS_H
+#include <linux/android/binder.h>
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#define BINDERFS_MAX_NAME 255
+struct binderfs_device {
+  char name[BINDERFS_MAX_NAME + 1];
+  __u32 major;
+  __u32 minor;
+};
+#define BINDER_CTL_ADD _IOWR('b', 1, struct binderfs_device)
+#endif