RESTRICT AUTOMERGE Skip ALLOW_SLIPPERY_TOUCHES in PermissionPolicyTest

Since we are allowing some modifications to the protection level of this
permission, and not able to change SystemApi retroactively, let's just
skip this permission check for the older releases.

Bug: 157929241
Test: python3 atest.py PermissionPolicyTest
Change-Id: I2928faa7b1f0e4f11ac4b2be9b99aca4bb3ccc58
Merged-In: I2928faa7b1f0e4f11ac4b2be9b99aca4bb3ccc58
1 file changed