ath10k: fix warnings from an earlier commit

I failed to notice that commit 523f6701dbab ("ath10k: update available channel
list for 5G radio") added two new warnings:

drivers/net/wireless/ath/ath10k/mac.c:3129:6: warning: symbol 'ath10k_mac_update_channel_list' was not declared. Should it be static?
drivers/net/wireless/ath/ath10k/mac.c:3170: Alignment should match open parenthesis

Fix those.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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

@@ -3126,8 +3126,8 @@ static void ath10k_regd_update(struct ath10k *ar)
 		ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
 }
 
-void ath10k_mac_update_channel_list(struct ath10k *ar,
-				    struct ieee80211_supported_band *band)
+static void ath10k_mac_update_channel_list(struct ath10k *ar,
+					   struct ieee80211_supported_band *band)
 {
 	int i;
 
@@ -3167,7 +3167,7 @@ static void ath10k_reg_notifier(struct wiphy *wiphy,
 
 	if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
 		ath10k_mac_update_channel_list(ar,
-				ar->hw->wiphy->bands[NL80211_BAND_5GHZ]);
+					       ar->hw->wiphy->bands[NL80211_BAND_5GHZ]);
 }
 
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