googlebackuptransport: fix for google backup and restore

This fixes restore issues with properly done 4.4 gapps

Change-Id: Ib0cec129d138a195e64f5bba36602ac5fdeda42d
Merge "googlebackuptransport: fix for google backup and restore" into android-4.4
Merge remote-tracking branch 'cm/android-4.4' into android-4.4