Add "common" runtest definition (for android-common library tests)

Author: egnor

testrunner/test_defs.xml

@@ -140,6 +140,10 @@ See test_defs.xsd for more information.
     coverage_target="framework"
     continuous="true" />
 
+<test name="common"
+    build_path="frameworks/base/common/tests"
+    package="com.android.common.tests" />
+
 <!--  cts tests -->
 
 <test name="cts-permission"