Add new tests to Android.mk

- es31fNegativeShaderImageLoadStoreTests
- es31fNegativeAtomicCounterTests

Change-Id: I125e07592c53db12c859f95c62c4aa122bf377c5
diff --git a/Android.mk b/Android.mk
index 1619790..40c0e68 100644
--- a/Android.mk
+++ b/Android.mk
@@ -566,9 +566,11 @@
 	modules/gles31/functional/es31fLayoutBindingTests.cpp \
 	modules/gles31/functional/es31fMultisampleShaderRenderCase.cpp \
 	modules/gles31/functional/es31fMultisampleTests.cpp \
+	modules/gles31/functional/es31fNegativeAtomicCounterTests.cpp \
 	modules/gles31/functional/es31fNegativeBufferApiTests.cpp \
 	modules/gles31/functional/es31fNegativeFragmentApiTests.cpp \
 	modules/gles31/functional/es31fNegativeShaderApiTests.cpp \
+	modules/gles31/functional/es31fNegativeShaderImageLoadStoreTests.cpp \
 	modules/gles31/functional/es31fNegativeStateApiTests.cpp \
 	modules/gles31/functional/es31fNegativeTestShared.cpp \
 	modules/gles31/functional/es31fNegativeTextureApiTests.cpp \