selftests/x86: fix spelling mistake "FAILT" -> "FAIL"

There is an spelling mistake in an a test error message. Fix it.
Acked-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/selftests/x86/test_vsyscall.c

@@ -451,7 +451,7 @@ static int test_vsys_x(void)
 		printf("[OK]\tExecuting the vsyscall page failed: #PF(0x%lx)\n",
 		       segv_err);
 	} else {
-		printf("[FAILT]\tExecution failed with the wrong error: #PF(0x%lx)\n",
+		printf("[FAIL]\tExecution failed with the wrong error: #PF(0x%lx)\n",
 		       segv_err);
 		return 1;
 	}