Update to kernel headers v4.12.3.

Test: Built angler.
Change-Id: Icbcf4fac2334de8409b049ed7a3b4c24b4e98ce9
diff --git a/libc/kernel/uapi/asm-arm64/asm/hwcap.h b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
index 6696ff0..4ab16ad 100644
--- a/libc/kernel/uapi/asm-arm64/asm/hwcap.h
+++ b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
@@ -29,4 +29,9 @@
 #define HWCAP_ATOMICS (1 << 8)
 #define HWCAP_FPHP (1 << 9)
 #define HWCAP_ASIMDHP (1 << 10)
+#define HWCAP_CPUID (1 << 11)
+#define HWCAP_ASIMDRDM (1 << 12)
+#define HWCAP_JSCVT (1 << 13)
+#define HWCAP_FCMA (1 << 14)
+#define HWCAP_LRCPC (1 << 15)
 #endif