MTP: Fix support for transfering folders and playlists.
MTP: Fix support for transfering folders and playlists.

This broke when I added support for transfering arbitrary files.

Change-Id: I6f2c052f3bd69839befcf0783d7aff5bcfd29b3e
Signed-off-by: Mike Lockwood <368d0007e4626f70737d16df5e49ed8806b98c3f@android.com>

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