Merge "fs_mgr: enable DT fstab based on its status node appropriately"

static bool is_dt_fstab_compatible() {

    std::string dt_value;

    std::string file_name = get_android_dt_dir() + "/fstab/compatible";

    if (read_dt_file(file_name, &dt_value)) {

        if (dt_value == "android,fstab") {

            return true;

        }

    if (read_dt_file(file_name, &dt_value) && dt_value == "android,fstab") {

        // If there's no status property or its set to "ok" or "okay", then we use the DT fstab.

        std::string status_value;

        std::string status_file_name = get_android_dt_dir() + "/fstab/status";

        return !read_dt_file(status_file_name, &status_value) || status_value == "ok" ||

               status_value == "okay";

    }

    return false;