Tegra194: Initialize smmu on system suspend exit

System suspend sequence involves initializing the SMMU
as a part of the system suspend exit, which is currently
not present for Tegra194 platform.

Thus call tegra_smmu_init() as a part of system suspend
exit.

Change-Id: I3086301743019e05a40fd221372e7f8713f286ae
Signed-off-by: Vignesh Radhakrishnan <vigneshr@nvidia.com>
diff --git a/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c b/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c
index adfd6cf..14af725 100644
--- a/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c
+++ b/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c
@@ -331,6 +331,8 @@
 
 		/* Init SMMU */
 
+		tegra_smmu_init();
+
 		/*
 		 * Reset power state info for the last core doing SC7
 		 * entry and exit, we set deepest power state as CC7