Add manifest flag to clear user data at restore

Currently there are 2 functionalities guarded by the same flag
(FLAG_ALLOW_CLEAR_USER_DATA):

1. Allowing users to clear the app's data from settings
2. Allowing the system to clear the app's data if a restore operation
fails.

The purpose of this CL is to introduce a new flag
(FLAG_ALLOW_CLEAR_USER_DATA_ON_FAILED_RESTORE) for (2)

Bug: 120267643
Test: N/A
Change-Id: I4ee315e311049c55ed26e7cf121f7e0c59eabd55