Define permssion configs for HC migration API

Context: https://docs.google.com/document/d/1U0sboZ4GfRyT5ofhr1r2P5FiY8A6vS_cQGEwY-QeswY/edit?resourcekey=0-Ez9qR1rdZS1a0MT6rHZeSg#

Bug: 262691010
Test: Manual - Signed an app and added its certificate to Google configs
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Change-Id: I020b4daf96e2b9c8df371f0c46b5d4555bcccbda