Always use "${codename}.${sha}" if UNBUNDLED_BUILD_TARGET_SDK_WITH_API_FINGERPRINT=true

Test: m checkbuild
Test: DIST_DIR=/tmp/r-on-q/prod/ TARGET_BUILD_VARIANT=userdebug \
  vendor/google/build/build_mainline_modules_prod.sh -j120
Test: DIST_DIR=/tmp/r-on-q/rsha/ TARGET_BUILD_VARIANT=userdebug \
  vendor/google/build/build_mainline_modules.sh -j120
Test: checked target sdk version is correct for both builds
Bug: 149733822
Change-Id: I3e1beeb721f7e87bc6adda61861fa962ec892360