test/service: fix some comment

[ upstream commit 79afbbf ]

Change the inaccurate comment of 'set pass flag' to 'clear pass flag'
as the '*pass_test = 0' code actually implements clearing.

Fixes: f038a81 ("service: add unit tests")

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>

app/test/test_service_cores.c

@@ -66,7 +66,7 @@ static int32_t dummy_mt_unsafe_cb(void *args)
 		rte_delay_ms(250);
 		rte_atomic32_clear((rte_atomic32_t *)atomic_lock);
 	} else {
-		/* 2nd thread will fail to take lock, so set pass flag */
+		/* 2nd thread will fail to take lock, so clear pass flag */
 		*pass_test = 0;
 	}