Update bionic kernel headers using update_all.py

Change-Id: I4da6b23cdbce89445f1ca5d2fadeb23345ce694c
diff --git a/libc/kernel/arch-arm/asm/arch/serial.h b/libc/kernel/arch-arm/asm/arch/serial.h
index 6ab8613..e11c53a 100644
--- a/libc/kernel/arch-arm/asm/arch/serial.h
+++ b/libc/kernel/arch-arm/asm/arch/serial.h
@@ -7,15 +7,20 @@
  ***   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 __ASM_ARCH_SERIAL_H
 #define __ASM_ARCH_SERIAL_H
-
 #define OMAP_MAX_NR_PORTS 3
 #define OMAP1510_BASE_BAUD (12000000/16)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define OMAP16XX_BASE_BAUD (48000000/16)
-
 #define is_omap_port(p) ({int __ret = 0;   if (p == IO_ADDRESS(OMAP_UART1_BASE) ||   p == IO_ADDRESS(OMAP_UART2_BASE) ||   p == IO_ADDRESS(OMAP_UART3_BASE))   __ret = 1;   __ret;   })
-
 #endif