thermal: fair_share: Add missing static storage class specifiers

Fixes the following sparse warnings:
drivers/thermal/fair_share.c:80:5: warning:
symbol 'fair_share_throttle' was not declared. Should it be static?
drivers/thermal/fair_share.c:111:25: warning:
symbol 'thermal_gov_fair_share' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

drivers/thermal/fair_share.c

@@ -77,7 +77,7 @@ static long get_target_state(struct thermal_zone_device *tz,
  *	(Heavily assumes the trip points are in ascending order)
  * new_state of cooling device = P3 * P2 * P1
  */
-int fair_share_throttle(struct thermal_zone_device *tz, int trip)
+static int fair_share_throttle(struct thermal_zone_device *tz, int trip)
 {
 	const struct thermal_zone_params *tzp;
 	struct thermal_cooling_device *cdev;
@@ -108,7 +108,7 @@ int fair_share_throttle(struct thermal_zone_device *tz, int trip)
 	return 0;
 }
 
-struct thermal_governor thermal_gov_fair_share = {
+static struct thermal_governor thermal_gov_fair_share = {
 	.name		= "fair_share",
 	.throttle	= fair_share_throttle,
 	.owner		= THIS_MODULE,