Protect setPermissionGrantState coexistence code.

Bug: 370472975
Bug: 336297680
Flag: android.app.admin.flags.set_permission_grant_state_coexistence
Test: btest -s sw android.devicepolicy.cts.PermissionGrantTest with flag
disabled.

Change-Id: Ia9c366ad976ee84d85d9d280385be437fafbef38
1 file changed