Disable checking AVB in runtime vintf

GSI disables AVB by overriding vbmeta partition.
When a device can run runtime vintf checking, it should already
pass AVB, so we don't need to check AVB in runtime vintf.

Bug: 68016134
Test: Boot with GSI and there is no Android System dialog
Change-Id: I598acffc8423f36c17e459398640bf4b2ef3bd04