Add loop option to hwuitest.

        printf("Error: couldn't find test %s\n", testName);

        return 1;

    }

    int loopCount = 1;

    if (argc > 2) {

        loopCount = atoi(argv[2]);

        if (!loopCount) {

            printf("Invalid loop count!\n");

            return 1;

        }

    }

    if (loopCount < 0) {

        loopCount = INT_MAX;

    }

    for (int i = 0; i < loopCount; i++) {

        proc();

    }

    printf("Success!\n");

    return 0;

}