This is so that CC_FLAGS will be resolved properly.
After the --incompatible_disable_genrule_cc_toolchain_dependency flag is
flipped, Bazel will no longer be providing CC_FLAGS to genrule by default.
PiperOrigin-RevId: 240595715
Change-Id: I067334051e89f7ec006a6b6b3d2f4188911ac2db