Fix misra warnings in delay timer and console drivers

Change-Id: I43d2b3a0f672b4902edec3d3a39ffedbb0a701a3
Signed-off-by: Sathees Balya <sathees.balya@arm.com>
diff --git a/drivers/delay_timer/generic_delay_timer.c b/drivers/delay_timer/generic_delay_timer.c
index 8a36c8a..03ca532 100644
--- a/drivers/delay_timer/generic_delay_timer.c
+++ b/drivers/delay_timer/generic_delay_timer.c
@@ -49,9 +49,9 @@
 	unsigned int div  = plat_get_syscnt_freq2();
 
 	/* Reduce multiplier and divider by dividing them repeatedly by 10 */
-	while ((mult % 10 == 0) && (div % 10 == 0)) {
-		mult /= 10;
-		div /= 10;
+	while (((mult % 10U) == 0U) && ((div % 10U) == 0U)) {
+		mult /= 10U;
+		div /= 10U;
 	}
 
 	generic_delay_timer_init_args(mult, div);