qcacmn: Fix wrong score if channel width isn't 20N MHz

Some operating class like 81, channel spacing is 25, need convert
channel width to 20 to get right score when select candidate.

Fix some code style issues too.

Change-Id: I15795d016cae74b7596a199ae2883aeababaf081
CRs-Fixed: 3250207

umac/scan/dispatcher/src/wlan_scan_utils_api.c

@@ -1929,7 +1929,7 @@ static void util_get_partner_link_info(struct scan_cache_entry *scan_entry)
 							      rnr->operating_class,
 							      true);
 			if (!link_info->freq)
-				scm_debug("freq 0 rnr channel %d op_class %d",
+				scm_debug("freq 0 rnr channel %u op_class %u",
 					  rnr->channel_number,
 					  rnr->operating_class);
 			link_info->op_class = rnr->operating_class;