ath9k: make ath_ps_ops structures as const

ath_ps_ops structures are only stored as a reference in the ps_ops
field of a ath_common structure. This field is of type const, so make
the structures as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath9k/htc_drv_init.c

@@ -71,7 +71,7 @@ static void ath9k_htc_op_ps_restore(struct ath_common *common)
 	ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv);
 }
 
-static struct ath_ps_ops ath9k_htc_ps_ops = {
+static const struct ath_ps_ops ath9k_htc_ps_ops = {
 	.wakeup = ath9k_htc_op_ps_wakeup,
 	.restore = ath9k_htc_op_ps_restore,
 };

drivers/net/wireless/ath/ath9k/init.c

@@ -104,7 +104,7 @@ static void ath9k_op_ps_restore(struct ath_common *common)
 	ath9k_ps_restore((struct ath_softc *) common->priv);
 }
 
-static struct ath_ps_ops ath9k_ps_ops = {
+static const struct ath_ps_ops ath9k_ps_ops = {
 	.wakeup = ath9k_op_ps_wakeup,
 	.restore = ath9k_op_ps_restore,
 };