Propagate flags necessary for a prebuilt of the Bionic linker.

The flags are necessary to avoid implicit dependencies on crt libs,
libc, and the linker (recursively). The reason cc_prebuilt_binary react
to these flags is that they can affect the install rules.

Test: m nothing
Test: art/test/testrunner/run_build_test_target.py art-linux-bionic-x64
  on a master-art branch using snapshot built from runtime-module-sdk
  and runtime-module-host-exports
Bug: 152255951
Change-Id: I6b2fe92d105d1f446fffd00bd3267a416f75efb7