New product config flag to gate blueprint modules

Example usage:
PRODUCT_INCLUDE_TAGS += use_myspecial_sdk

This also populates the allowlist with go/nogo mainline tags. Usage of
`PRODUCT_INCLUDE_TAGS` outside this allowlist will raise an error
in product config

Test: TH

Change-Id: Ica82a8f65cbfda600d72fc54fb873c1eaa1666a7