Update kernel headers with new parser.

Test: Builds.
Change-Id: I3f0714d53ac893ccc3e66f7a92d0ea7a6737f1c3
diff --git a/libc/kernel/uapi/drm/armada_drm.h b/libc/kernel/uapi/drm/armada_drm.h
index ea1f37d..aabd23b 100644
--- a/libc/kernel/uapi/drm/armada_drm.h
+++ b/libc/kernel/uapi/drm/armada_drm.h
@@ -20,6 +20,7 @@
 #define DRM_ARMADA_IOCTL_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_ARMADA_GEM_CREATE 0x00
 #define DRM_ARMADA_GEM_MMAP 0x02
@@ -46,5 +47,6 @@
 };
 #define DRM_IOCTL_ARMADA_GEM_PWRITE ARMADA_IOCTL(IOW, GEM_PWRITE, gem_pwrite)
 #ifdef __cplusplus
+}
 #endif
 #endif