Camera2: Tests: Skip stream tests /w formats that are not available.

Change-Id: I187ca983010483d1cb3ac951da2aa8b886828ef7
diff --git a/tests/camera2/CameraModuleFixture.h b/tests/camera2/CameraModuleFixture.h
index d604ff7..6ad1ae8 100644
--- a/tests/camera2/CameraModuleFixture.h
+++ b/tests/camera2/CameraModuleFixture.h
@@ -47,6 +47,12 @@
         TearDown();
     }
 
+    camera_metadata_ro_entry GetStaticEntry(uint32_t tag) const {
+        const CameraMetadata& staticInfo = mDevice->info();
+        camera_metadata_ro_entry entry = staticInfo.find(tag);
+        return entry;
+    }
+
 private:
 
     void SetUp() {