PM / PM QoS: Fix reversed min and max

pm_qos_get_value had min and max reversed, causing all pm_qos
requests to have no effect.
Signed-off-by: NColin Cross <ccross@android.com>
Acked-by: Nmark <markgross@thegnar.org>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org

kernel/pm_qos_params.c

@@ -121,10 +121,10 @@ static inline int pm_qos_get_value(struct pm_qos_object *o)
 
 	switch (o->type) {
 	case PM_QOS_MIN:
-		return plist_last(&o->requests)->prio;
+		return plist_first(&o->requests)->prio;
 
 	case PM_QOS_MAX:
-		return plist_first(&o->requests)->prio;
+		return plist_last(&o->requests)->prio;
 
 	default:
 		/* runtime check for not using enum */