Update kernel headers to v3.18.3.

Bug: 19127803
Change-Id: I67fa0832322ddd0032d909476047578be052bcf2
diff --git a/libc/kernel/uapi/linux/elf.h b/libc/kernel/uapi/linux/elf.h
index 0e0d725..dc3ce00 100644
--- a/libc/kernel/uapi/linux/elf.h
+++ b/libc/kernel/uapi/linux/elf.h
@@ -404,26 +404,28 @@
 #define NT_S390_LAST_BREAK 0x306
 #define NT_S390_SYSTEM_CALL 0x307
 #define NT_S390_TDB 0x308
-#define NT_ARM_VFP 0x400
+#define NT_S390_VXRS_LOW 0x309
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define NT_S390_VXRS_HIGH 0x30a
+#define NT_ARM_VFP 0x400
 #define NT_ARM_TLS 0x401
 #define NT_ARM_HW_BREAK 0x402
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NT_ARM_HW_WATCH 0x403
 #define NT_METAG_CBUF 0x500
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NT_METAG_RPIPE 0x501
 #define NT_METAG_TLS 0x502
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 typedef struct elf32_note {
  Elf32_Word n_namesz;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  Elf32_Word n_descsz;
  Elf32_Word n_type;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } Elf32_Nhdr;
 typedef struct elf64_note {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  Elf64_Word n_namesz;
  Elf64_Word n_descsz;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  Elf64_Word n_type;
 } Elf64_Nhdr;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif