Switch to clang-2812033.

Change-Id: Ie44a0536a50aa6b443be0c015fca1ea9fa02590c
diff --git a/cc/cc.go b/cc/cc.go
index d46505f..6297a4e 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -172,7 +172,7 @@
 		if override := config.(common.Config).Getenv("LLVM_PREBUILTS_VERSION"); override != "" {
 			return override, nil
 		}
-		return "clang-2690385", nil
+		return "clang-2812033", nil
 	})
 	pctx.StaticVariable("clangPath", "${clangBase}/${HostPrebuiltTag}/${clangVersion}")
 	pctx.StaticVariable("clangBin", "${clangPath}/bin")