Grant BAL permission by AutofillManager

Starting with Android 15 apps need to opt in to grant BAL privileges.
android.autofillservice.cts.dropdown.LoginActivityTest#testClickCustomButton, android.autofillservice.cts.inline.InlineLoginActivityTest#testLongClickAttribution and android.autofillservice.cts.inline.InlineLoginActivityTest#testLongClickEventPassToIme are some of the tests we identified to fail if left unchanged.

Test: atest android.autofillservice.cts.dropdown.LoginActivityTest#testClickCustomButton android.autofillservice.cts.inline.InlineLoginActivityTest#testLongClickAttribution android.autofillservice.cts.inline.InlineLoginActivityTest#testLongClickEventPassToIme
Bug: 314033453
Change-Id: I4dfbd19674a840e1cc0d203cee3f762b1dde3b2b