Update to use the correct logging library.

Test: mma compiles
Change-Id: Idb33dea5faaf1a5e54719c2a5a683d2d47e9b8e8
diff --git a/light/2.0/default/Light.cpp b/light/2.0/default/Light.cpp
index eb1f559..f52c6af 100644
--- a/light/2.0/default/Light.cpp
+++ b/light/2.0/default/Light.cpp
@@ -13,6 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+#define LOG_TAG "light"
+#include <android/log.h>
+
 #include "Light.h"
 
 namespace android {