tests: fix IPC test set

- use one single library instead of loose library files
- we don't have ftime() anymore
- shmat(non-NULL) is currently broken, fix shmt test set to bypass this
- some other small issues

test/ipc/semctl/semctl02.c

@@ -94,7 +94,6 @@ int main(int ac, char **av)
 		TEST(semctl(sem_id_1, 0, IPC_STAT, un_arg));
 	
 		if (TEST_RETURN != -1) {
-printf("result: %d\n", TEST_RETURN);
 			tst_resm(TFAIL, "call succeeded when error expected");
 			continue;
 		}