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/pmu.h b/libc/kernel/uapi/linux/pmu.h
index 372bd19..5a3d8c2 100644
--- a/libc/kernel/uapi/linux/pmu.h
+++ b/libc/kernel/uapi/linux/pmu.h
@@ -88,33 +88,33 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define PMU_I2C_STATUS_BUSY 0xfe
 enum {
- PMU_UNKNOWN,
- PMU_OHARE_BASED,
+  PMU_UNKNOWN,
+  PMU_OHARE_BASED,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- PMU_HEATHROW_BASED,
- PMU_PADDINGTON_BASED,
- PMU_KEYLARGO_BASED,
- PMU_68K_V1,
+  PMU_HEATHROW_BASED,
+  PMU_PADDINGTON_BASED,
+  PMU_KEYLARGO_BASED,
+  PMU_68K_V1,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- PMU_68K_V2,
+  PMU_68K_V2,
 };
 enum {
- PMU_PWR_GET_POWERUP_EVENTS = 0x00,
+  PMU_PWR_GET_POWERUP_EVENTS = 0x00,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- PMU_PWR_SET_POWERUP_EVENTS = 0x01,
- PMU_PWR_CLR_POWERUP_EVENTS = 0x02,
- PMU_PWR_GET_WAKEUP_EVENTS = 0x03,
- PMU_PWR_SET_WAKEUP_EVENTS = 0x04,
+  PMU_PWR_SET_POWERUP_EVENTS = 0x01,
+  PMU_PWR_CLR_POWERUP_EVENTS = 0x02,
+  PMU_PWR_GET_WAKEUP_EVENTS = 0x03,
+  PMU_PWR_SET_WAKEUP_EVENTS = 0x04,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- PMU_PWR_CLR_WAKEUP_EVENTS = 0x05,
+  PMU_PWR_CLR_WAKEUP_EVENTS = 0x05,
 };
 enum {
- PMU_PWR_WAKEUP_KEY = 0x01,
+  PMU_PWR_WAKEUP_KEY = 0x01,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- PMU_PWR_WAKEUP_AC_INSERT = 0x02,
- PMU_PWR_WAKEUP_AC_CHANGE = 0x04,
- PMU_PWR_WAKEUP_LID_OPEN = 0x08,
- PMU_PWR_WAKEUP_RING = 0x10,
+  PMU_PWR_WAKEUP_AC_INSERT = 0x02,
+  PMU_PWR_WAKEUP_AC_CHANGE = 0x04,
+  PMU_PWR_WAKEUP_LID_OPEN = 0x08,
+  PMU_PWR_WAKEUP_RING = 0x10,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #include <linux/ioctl.h>