libsnapshot: Fix DataWipeAfterRollback test

Test: run it
Bug: 152094219
Change-Id: I06852d7a0514481cbeed3ef66192ba49a24cb54b
(cherry picked from commit a4f9b07490998a90a0ce1ef7f241145ac279b2af)
Merged-In: I06852d7a0514481cbeed3ef66192ba49a24cb54b
1 file changed