Switch kernel header parsing to python libclang

Replace the tokenizer in cpp.py with libclang.

Bug: 18937958
Change-Id: I27630904c6d2849418cd5ca3d3c612ec3078686d
diff --git a/libc/kernel/uapi/linux/vsp1.h b/libc/kernel/uapi/linux/vsp1.h
index b7522e7..28f7fcd 100644
--- a/libc/kernel/uapi/linux/vsp1.h
+++ b/libc/kernel/uapi/linux/vsp1.h
@@ -21,9 +21,9 @@
 #include <linux/types.h>
 #include <linux/videodev2.h>
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define VIDIOC_VSP1_LUT_CONFIG   _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct vsp1_lut_config)
+#define VIDIOC_VSP1_LUT_CONFIG _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct vsp1_lut_config)
 struct vsp1_lut_config {
- u32 lut[256];
+  u32 lut[256];
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif