Exempt framework-res from UseApiFingerprint

Generating the API fingerpring depends on framework-res, so the
fingerprint cannot be embedded into framework-res.  Hardcode an
exemption to UseApiFingerprint.

Bug: 181978889
Test: TARGET_BUILD_VARIANT=user UNBUNDLED_BUILD_TARGET_SDK_WITH_API_FINGERPRINT=true vendor/google/build/build_mainline_modules.sh
Change-Id: I621f36d5eb157dd97baa132ff109b4df791eedcc