Migrate frameworks/base/tests/testables and its users to androidx.test

See go/jetpack-test-android-migration

Test: atest TestablesTests NetworkStackTests FrameworksServicesTests SystemUITests FrameworksUiServicesTests ExtServicesUnitTests
Exempt-From-Owner-Approval: already reviewed
Change-Id: I083fcdaa71b503535aa2b3c257740f3ecf055373
Merged-In: Ib04d80954bd8536914d88c66b28e6632e60a6245
diff --git a/tests/testables/Android.bp b/tests/testables/Android.bp
index f07f09d..0bad7a4 100644
--- a/tests/testables/Android.bp
+++ b/tests/testables/Android.bp
@@ -25,7 +25,7 @@
     libs: [
         "android.test.runner",
         "android.test.mock",
-        "android-support-test",
+        "androidx.test.rules",
         "mockito-target-inline-minus-junit4",
     ],