selftests: timers: fix declarations of main()

Mixing up argc/argv went unnoticed because they were not used. Still,
this is worth fixing.

Signed-off-by: Wolfram Sang <[e-mail]>
Acked-by: John Stultz <[e-mail]>
Signed-off-by: Shuah Khan <[e-mail]>

tools/testing/selftests/timers/adjtick.c

···
 	return  0;
 }
 
-int main(int argv, char **argc)
+int main(int argc, char **argv)
 {
 	struct timespec raw;
 	long tick, max, interval, err;

tools/testing/selftests/timers/change_skew.c

···
 }
 
 
-int main(int argv, char **argc)
+int main(int argc, char **argv)
 {
 	struct timex tx;
 	int i, ret;

tools/testing/selftests/timers/raw_skew.c

···
 	}
 }
 
-int main(int argv, char **argc)
+int main(int argc, char **argv)
 {
 	struct timespec mon, raw, start, end;
 	long long delta1, delta2, interval, eppm, ppm;

tools/testing/selftests/timers/skew_consistency.c

···
 
 #define NSEC_PER_SEC 1000000000LL
 
-int main(int argv, char **argc)
+int main(int argc, char **argv)
 {
 	struct timex tx;
 	int ret, ppm;