Tegra186: PSCI: support for 64-bit TZDRAM base

This patch fixes the variable width to store the TZDRAM base
address used to resume from System Suspend.

Change-Id: Ib67eda64b09f26fb2f427f0d624f057081473132
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

plat/nvidia/tegra/soc/t186/plat_psci_handlers.c

@@ -260,7 +260,7 @@ int tegra_soc_pwr_domain_power_down_wfi(const psci_power_state_t *target_state)
 	plat_params_from_bl2_t *params_from_bl2 = bl31_get_plat_params();
 	unsigned int stateid_afflvl2 = pwr_domain_state[PLAT_MAX_PWR_LVL] &
 		TEGRA186_STATE_ID_MASK;
-	uint32_t val;
+	uint64_t val;
 
 	if (stateid_afflvl2 == PSTATE_ID_SOC_POWERDN) {
 		/*