Add min SDK to auxiliary overlay package

Without this the package receive the same min SDK as the branch it is
built on. This means that a package build in master (UDC) cannot be
installed on a T build and the test will fail.

Bug: 210089326
Test: atest SafetyCenterConfigTests
Change-Id: I11d512ace2b68c10a7913e9348de9d4081b59f3e
1 file changed