Migrate frameworks/base/packages/CarrierDefaultApp/tests/unit to androidx.test

See go/jetpack-test-android-migration

Test: make checkbuild
Change-Id: I1daac09d07b1ebddecad3ebf88af713f923ddf7d
diff --git a/packages/CarrierDefaultApp/tests/unit/Android.mk b/packages/CarrierDefaultApp/tests/unit/Android.mk
index 8e3785e..4c638811 100644
--- a/packages/CarrierDefaultApp/tests/unit/Android.mk
+++ b/packages/CarrierDefaultApp/tests/unit/Android.mk
@@ -21,7 +21,7 @@
 
 LOCAL_JAVA_LIBRARIES := android.test.runner telephony-common android.test.base
 
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-test mockito-target-minus-junit4
+LOCAL_STATIC_JAVA_LIBRARIES := androidx.test.rules mockito-target-minus-junit4
 
 # Include all test java files.
 LOCAL_SRC_FILES := $(call all-java-files-under, src)