Update to kernel headers v4.12.3.

Test: Built angler.
Change-Id: Icbcf4fac2334de8409b049ed7a3b4c24b4e98ce9
diff --git a/libc/kernel/uapi/linux/nubus.h b/libc/kernel/uapi/linux/nubus.h
index 5c80c81..530005b 100644
--- a/libc/kernel/uapi/linux/nubus.h
+++ b/libc/kernel/uapi/linux/nubus.h
@@ -64,13 +64,15 @@
   NUBUS_DRHW_SIGMA_CLRMAX = 0x0007,
   NUBUS_DRHW_APPLE_SE30 = 0x0009,
   NUBUS_DRHW_APPLE_HRVC = 0x0013,
+  NUBUS_DRHW_APPLE_MVC = 0x0014,
   NUBUS_DRHW_APPLE_PVC = 0x0017,
   NUBUS_DRHW_APPLE_RBV1 = 0x0018,
   NUBUS_DRHW_APPLE_MDC = 0x0019,
+  NUBUS_DRHW_APPLE_VSC = 0x0020,
   NUBUS_DRHW_APPLE_SONORA = 0x0022,
+  NUBUS_DRHW_APPLE_JET = 0x0029,
   NUBUS_DRHW_APPLE_24AC = 0x002b,
   NUBUS_DRHW_APPLE_VALKYRIE = 0x002e,
-  NUBUS_DRHW_APPLE_JET = 0x0029,
   NUBUS_DRHW_SMAC_GFX = 0x0105,
   NUBUS_DRHW_RASTER_CB264 = 0x013B,
   NUBUS_DRHW_MICRON_XCEED = 0x0146,