spd: trusty: OEN_TAP_START aperture for standard calls

This patch uses the OEN_TAP_START aperture for all the standard
calls being passed to Trusty.

Change-Id: Id78d01c7f48e4f54855600d7c789ffbfb898c541
Signed-off-by: Amith <aramachan@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

services/spd/trusty/trusty.c

@@ -395,7 +395,7 @@ DECLARE_RT_SVC(
 DECLARE_RT_SVC(
 	trusty_std,
 
-	OEN_TOS_START,
+	OEN_TAP_START,
 	SMC_ENTITY_SECURE_MONITOR,
 	SMC_TYPE_STD,
 	NULL,