Adding null check to RemoteVvmTaskManager.

Adding missing null check for KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY
carrier config access.

Test: Manual.
Bug: 34651942
Fixes: 37793131
Change-Id: I85930e5851972012acaa02aeec0c468258541898
Merged-In: I85930e5851972012acaa02aeec0c468258541898
1 file changed