Fix issues with RollbackTest

* Add missing permission needed in testBadUpdateRollback test.
* Re-enable testRollbackWithSplits test now that the build issues have
  been sorted out.

Bug: 127920549
Test: atest RollbackTest
Change-Id: I5bd70aea4f1ad0345d7a37e78c0f3b5ef0615ed1
1 file changed