Tegra194: config to enable/disable strict checking mode

This patch adds a new configuration option to the platform makefiles
that disables/enables strict checking mode. The config is enabled
by default.

Change-Id: I727dd0facee88d9517bf6956eaf9163eba25c8bb
Signed-off-by: Steven Kao <skao@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 9a9113e..e2001b1 100644
--- a/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c
+++ b/plat/nvidia/tegra/soc/t194/plat_psci_handlers.c
@@ -357,11 +357,13 @@
 	 */
 	if (stateid_afflvl2 == PSTATE_ID_SOC_POWERDN) {
 
+#if ENABLE_STRICT_CHECKING_MODE
 		/*
 		 * Enable strict checking after programming the GSC for
 		 * enabling TZSRAM and TZDRAM
 		 */
 		mce_enable_strict_checking();
+#endif
 
 		/* Init SMMU */
 		tegra_smmu_init();