ath10k: make some functions static

Fixes the following sparse warnings:

drivers/net/wireless/ath/ath10k/snoc.c:823:5: warning:
 symbol 'ath10k_snoc_get_ce_id_from_irq' was not declared. Should it be static?
drivers/net/wireless/ath/ath10k/snoc.c:871:6: warning:
 symbol 'ath10k_snoc_init_napi' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/ath10k/snoc.c

@@ -820,7 +820,7 @@ static const struct ath10k_bus_ops ath10k_snoc_bus_ops = {
 	.write32	= ath10k_snoc_write32,
 };
 
-int ath10k_snoc_get_ce_id_from_irq(struct ath10k *ar, int irq)
+static int ath10k_snoc_get_ce_id_from_irq(struct ath10k *ar, int irq)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 	int i;
@@ -868,7 +868,7 @@ static int ath10k_snoc_napi_poll(struct napi_struct *ctx, int budget)
 	return done;
 }
 
-void ath10k_snoc_init_napi(struct ath10k *ar)
+static void ath10k_snoc_init_napi(struct ath10k *ar)
 {
 	netif_napi_add(&ar->napi_dev, &ar->napi, ath10k_snoc_napi_poll,
 		       ATH10K_NAPI_BUDGET);