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/sunrpc/debug.h b/libc/kernel/uapi/linux/sunrpc/debug.h
index 0c254c1..3f09f6d 100644
--- a/libc/kernel/uapi/linux/sunrpc/debug.h
+++ b/libc/kernel/uapi/linux/sunrpc/debug.h
@@ -36,15 +36,15 @@
 #define RPCDBG_ALL 0x7fff
 enum {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- CTL_RPCDEBUG = 1,
- CTL_NFSDEBUG,
- CTL_NFSDDEBUG,
- CTL_NLMDEBUG,
+  CTL_RPCDEBUG = 1,
+  CTL_NFSDEBUG,
+  CTL_NFSDDEBUG,
+  CTL_NLMDEBUG,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- CTL_SLOTTABLE_UDP,
- CTL_SLOTTABLE_TCP,
- CTL_MIN_RESVPORT,
- CTL_MAX_RESVPORT,
+  CTL_SLOTTABLE_UDP,
+  CTL_SLOTTABLE_TCP,
+  CTL_MIN_RESVPORT,
+  CTL_MAX_RESVPORT,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #endif