mediametrics: add cts path to the visibility section.

Test: atest CtsNativeMediaMetricsTestCases
Bug: 141828720
Change-Id: Ie66e257129f62512c1d110722aec1087d1de5384
diff --git a/media/libmediametrics/Android.bp b/media/libmediametrics/Android.bp
index 9d348ec..f599190 100644
--- a/media/libmediametrics/Android.bp
+++ b/media/libmediametrics/Android.bp
@@ -44,6 +44,7 @@
     },
 
     visibility: [
+        "//cts/tests/tests/nativemedia/mediametrics",
         "//frameworks/av:__subpackages__",
         "//frameworks/base/core/jni",
         "//frameworks/base/media/jni",