qtnfmac: simplify error reporting in regulatory notifier

Error reporting in qtnf_cfg80211_reg_notifier only requires to print
one type of message and an error code. Firmware will report success
for an attempt to set regulatory region to the same value,
so no special handling is required for this case.
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/quantenna/qtnfmac/cfg80211.c

@@ -1005,16 +1005,8 @@ static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy,
 
 	ret = qtnf_cmd_reg_notify(mac, req);
 	if (ret) {
-		if (ret == -EOPNOTSUPP) {
-			pr_warn("reg update not supported\n");
-		} else if (ret == -EALREADY) {
-			pr_info("regulatory domain is already set to %c%c",
-				req->alpha2[0], req->alpha2[1]);
-		} else {
-			pr_err("failed to update reg domain to %c%c\n",
-			       req->alpha2[0], req->alpha2[1]);
-		}
-
+		pr_err("MAC%u: failed to update region to %c%c: %d\n",
+		       mac->macid, req->alpha2[0], req->alpha2[1], ret);
 		return;
 	}