msm_shared: scm: Using correct service name for memory protection

This commit fixes the redefinition of SSD service by
using the correct service name for memory protection.

Change-Id: I88979ed7f101ffc48098b6e19cdd64ae70168634
diff --git a/platform/msm_shared/scm.c b/platform/msm_shared/scm.c
index 7edcc2b..dae8723 100644
--- a/platform/msm_shared/scm.c
+++ b/platform/msm_shared/scm.c
@@ -190,7 +190,7 @@
 	secure_cfg.id    = 1;
 	secure_cfg.spare = 0;
 
-	ret = scm_call(SCM_SVC_SSD, IOMMU_SECURE_CFG, &secure_cfg, sizeof(secure_cfg),
+	ret = scm_call(SVC_MEMORY_PROTECTION, IOMMU_SECURE_CFG, &secure_cfg, sizeof(secure_cfg),
 			&scm_ret, sizeof(scm_ret));
 
 	if (ret || scm_ret) {