Update to v5.13 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.13

Test: Builds, bionic unit tests.
Change-Id: Ia4360ca4a2808206f64187dcb234d73c5752624b
diff --git a/libc/kernel/uapi/linux/input-event-codes.h b/libc/kernel/uapi/linux/input-event-codes.h
index 732e9b7..b283f56 100644
--- a/libc/kernel/uapi/linux/input-event-codes.h
+++ b/libc/kernel/uapi/linux/input-event-codes.h
@@ -548,6 +548,7 @@
 #define KEY_VOICECOMMAND 0x246
 #define KEY_ASSISTANT 0x247
 #define KEY_KBD_LAYOUT_NEXT 0x248
+#define KEY_EMOJI_PICKER 0x249
 #define KEY_BRIGHTNESS_MIN 0x250
 #define KEY_BRIGHTNESS_MAX 0x251
 #define KEY_KBDINPUTASSIST_PREV 0x260