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/mii.h b/libc/kernel/uapi/linux/mii.h
index d0f940e..7acc234 100644
--- a/libc/kernel/uapi/linux/mii.h
+++ b/libc/kernel/uapi/linux/mii.h
@@ -103,8 +103,8 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define ADVERTISE_LPACK 0x4000
 #define ADVERTISE_NPAGE 0x8000
-#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL |   ADVERTISE_CSMA)
-#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL |   ADVERTISE_100HALF | ADVERTISE_100FULL)
+#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL | ADVERTISE_CSMA)
+#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | ADVERTISE_100HALF | ADVERTISE_100FULL)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define LPA_SLCT 0x001f
 #define LPA_10HALF 0x0020
@@ -162,10 +162,10 @@
 #define MII_MMD_CTRL_INCR_ON_WT 0xC000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct mii_ioctl_data {
- __u16 phy_id;
- __u16 reg_num;
- __u16 val_in;
+  __u16 phy_id;
+  __u16 reg_num;
+  __u16 val_in;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u16 val_out;
+  __u16 val_out;
 };
 #endif