Add default -Werror to sdk/emulator/mksdcard.

Bug: 66996870
Test: build with WITH_TIDY=1
Change-Id: I6499be53a2539143ad6785c1513fe4bd5d3a9910
diff --git a/cc/config/global.go b/cc/config/global.go
index 243a2f9..6f27822 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -136,7 +136,6 @@
 		"frameworks/webview/chromium/",
 		"hardware/libhardware/modules/",
 		"hardware/qcom/",
-		"sdk/emulator/mksdcard/",
 		"tools/adt/idea/android/ultimate/get_modification_time/jni/",
 	}
 )