Add API level define for T.

Test: treehugger
Bug: None
Change-Id: I7a973bbd7e8d646f45f4d860d564f9f104aab134
diff --git a/libc/include/android/api-level.h b/libc/include/android/api-level.h
index 40846fb..ecf318d 100644
--- a/libc/include/android/api-level.h
+++ b/libc/include/android/api-level.h
@@ -151,6 +151,9 @@
 /** Names the "S" API level (31), for comparison against `__ANDROID_API__`. */
 #define __ANDROID_API_S__ 31
 
+/** Names the "T" API level (33), for comparison against `__ANDROID_API__`. */
+#define __ANDROID_API_T__ 33
+
 /* This file is included in <features.h>, and might be used from .S files. */
 #if !defined(__ASSEMBLY__)