Migrate BugreportReceiverTest to JUnit 4.

BUG: 30839080

Change-Id: I4af0d9ba26eb07dd78f1eef26c4edb7d3e03f582
diff --git a/packages/Shell/tests/Android.mk b/packages/Shell/tests/Android.mk
index 1e0eaac..872eb7a 100644
--- a/packages/Shell/tests/Android.mk
+++ b/packages/Shell/tests/Android.mk
@@ -8,7 +8,9 @@
 
 LOCAL_JAVA_LIBRARIES := android.test.runner
 
-LOCAL_STATIC_JAVA_LIBRARIES := ub-uiautomator
+LOCAL_STATIC_JAVA_LIBRARIES := \
+    android-support-test \
+    ub-uiautomator \
 
 LOCAL_PACKAGE_NAME := ShellTests
 LOCAL_INSTRUMENTATION_FOR := Shell