Tegra: fixup GIC init from the 'on_finish' handler

Commit e9e19fb2

 accidentally removed the
GIC init routine required to initialze the distributor on system resume.

This patch fixes this anomaly and initializes the distributor on system
resume.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I3fdc694404faa509952f2d90b1f16541165e583e

plat/nvidia/tegra/common/tegra_pm.c

@@ -151,17 +151,19 @@ void tegra_pwr_domain_on_finish(const psci_power_state_t *target_state)
 {
 	const plat_params_from_bl2_t *plat_params;
 
-	/*
-	 * Initialize the GIC cpu and distributor interfaces
-	 */
-	tegra_gic_pcpu_init();
-
 	/*
 	 * Check if we are exiting from deep sleep.
 	 */
 	if (target_state->pwr_domain_state[PLAT_MAX_PWR_LVL] ==
 			PSTATE_ID_SOC_POWERDN) {
 
+		/*
+		 * On entering System Suspend state, the GIC loses power
+		 * completely. Initialize the GIC global distributor and
+		 * GIC cpu interfaces.
+		 */
+		tegra_gic_init();
+
 		/* Restart console output. */
 		console_switch_state(CONSOLE_FLAG_RUNTIME);
 
@@ -183,6 +185,11 @@ void tegra_pwr_domain_on_finish(const psci_power_state_t *target_state)
 		 * access
 		 */
 		tegra_memctrl_tzram_setup(TEGRA_TZRAM_BASE, TEGRA_TZRAM_SIZE);
+	} else {
+		/*
+		 * Initialize the GIC cpu and distributor interfaces
+		 */
+		tegra_gic_pcpu_init();
 	}
 
 	/*