Tegra: calculate proper power state for affinity levels

This patch fixes the 'tegra_soc_get_target_pwr_state' handler used to
calculate the proper state for each of the affinity levels.

Change-Id: Id16bd15b96f0fc633ffeac2d7a390592fbd0454b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

plat/nvidia/tegra/common/tegra_pm.c

@@ -101,13 +101,13 @@ plat_local_state_t tegra_soc_get_target_pwr_state(unsigned int lvl,
 					     const plat_local_state_t *states,
 					     unsigned int ncpu)
 {
-	plat_local_state_t target = PLAT_MAX_RET_STATE, temp;
+	plat_local_state_t target = PLAT_MAX_OFF_STATE, temp;
 
 	assert(ncpu);
 
 	do {
 		temp = *states++;
-		if ((temp > target) && (temp != PLAT_MAX_OFF_STATE))
+		if ((temp < target))
 			target = temp;
 	} while (--ncpu);