Build the general tests host shared libs.

Build general-tests-shared-libs as it's an expected output of building
general-tests.

Test: BUILD_NUMBER="P0" ./build/make/ci/build_test_suites --target_product aosp_x86_64
--target_release trunk_staging --with_dexpreopt_boot_img_and_system_server_only --dist_dir <dist_dir> --change_info <change_info_file> <extra_targets>
Bug: 314171817

Change-Id: I2c18f41079d6db8621299734398b7a9df64930db