Adding some widget addition flow tests

> Added two dummy widget providers: with config and without config
> Added tests for verify widget config flow

Change-Id: I4577f085abe8f8b82047b644c71cc9065358153a
diff --git a/build.gradle b/build.gradle
index 3a812a9..51ac5a1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -46,12 +46,16 @@
         androidTest {
             java.srcDirs = ['tests/src']
             res.srcDirs = ['tests/res']
-            manifest.srcFile "tests/AndroidManifest.xml"
+            manifest.srcFile "tests/AndroidManifest-common.xml"
         }
 
         aosp {
             manifest.srcFile "AndroidManifest.xml"
         }
+
+        aospAndroidTest {
+            manifest.srcFile "tests/AndroidManifest.xml"
+        }
     }
 }