camera: fix `-Wmacro-redefined` compiler warnings

Test: add `USE_CAMERA_V4L2_HAL := true` to
      hardware/libhardware/modules/camera/3_4/Android.mk and build
      mmm hardware/libhardware/modules/camera/3_4
Change-Id: Ida00d842007e2a589907bc4fd1887076fd8b5b2a
Signed-off-by: Sergii Piatakov <sergii.piatakov@globallogic.com>
diff --git a/modules/camera/3_4/v4l2_camera.cpp b/modules/camera/3_4/v4l2_camera.cpp
index 98b8062..62d790e 100644
--- a/modules/camera/3_4/v4l2_camera.cpp
+++ b/modules/camera/3_4/v4l2_camera.cpp
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+//#define LOG_NDEBUG 0
+#define LOG_TAG "V4L2Camera"
+
 #include "v4l2_camera.h"
 
 #include <fcntl.h>