Don't try to rescale when no bitmap in RemoteControlClient
Don't try to rescale when no bitmap in RemoteControlClient

If a RemoteControlClient has a null artwork, do no attempt to
 rescale the bitmap, it's ok to send a null bitmap to the
 IRemoteControlDisplay.

Change-Id: I8332ccfcf18107ea0b41d4e7fa232d7f68798efc

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base