The pattern %tests is too broad.

We had fixed the filtering of %tests in art/Android.mk.
Actually the %tests leads to false build<suffix>.ninja when you run:
$ mmma cts/tests/tests/nativeopengl/libnativeopengltests
because the new mmma calls make with goals like
MODULES-IN/cts/tests/tests/nativeopengl/libnativeopengltests .

Bug: 24309760
Change-Id: I35af2e8d046ae40f3b90ec0a92473fcab8ff5db5
diff --git a/core/ninja.mk b/core/ninja.mk
index c469e02..b9a0cec 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -7,7 +7,7 @@
 PARSE_TIME_MAKE_GOALS := \
 	$(PARSE_TIME_MAKE_GOALS) \
 	$(dont_bother_goals) \
-	%tests \
+	tests \
 	APP-% \
 	DUMP_% \
 	ECLIPSE-% \