fix: spm tests less verbose

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I3359b2e6e73dd0ceb923c953a6b18badd871294b
diff --git a/spm/cactus/cactus_interrupt.c b/spm/cactus/cactus_interrupt.c
index 2305b01..02d1fbf 100644
--- a/spm/cactus/cactus_interrupt.c
+++ b/spm/cactus/cactus_interrupt.c
@@ -46,7 +46,7 @@
 		 * Interrupt triggered due to Trusted watchdog timer expiry.
 		 * Clear the interrupt and stop the timer.
 		 */
-		NOTICE("Trusted WatchDog timer stopped\n");
+		VERBOSE("Trusted WatchDog timer stopped\n");
 		sp805_twdog_stop();
 
 		/* Perform secure interrupt de-activation. */