Pass application packagename to drm plugin.

Pass application package name to createPlugin and createDrmPlugin.
The application packagename will be used as part of a unique
identifier for drm plugin.

Test: Play Movies.

Test: ANDROID_BUILD_TOP= ./android-gts/tools/gts-tradefed run gts -m
GtsMediaTestCases --test
com.google.android.media.gts.WidevineH264PlaybackTests#testL1With480P60

Verify the application's packagename is reachable in the drm plugin's
debug log.

bug: 27101531

Change-Id: I84fb09b591a7af63f6e20004e910112a4ce6ebac
diff --git a/media/ndk/NdkMediaDrm.cpp b/media/ndk/NdkMediaDrm.cpp
index cdce932..7a9240b 100644
--- a/media/ndk/NdkMediaDrm.cpp
+++ b/media/ndk/NdkMediaDrm.cpp
@@ -172,7 +172,8 @@
         return NULL;
     }
 
-    status_t err = drm->createPlugin(uuid);
+    String8 nullPackageName;
+    status_t err = drm->createPlugin(uuid, nullPackageName);
 
     if (err != OK) {
         return NULL;