Fix follow warning:
[net/wireless/reg.c:3619]: (warning) %d in format string (no. 2)
requires 'int' but the argument type is 'unsigned int'.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20201009070215.63695-1-yebin10@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
                power_rule = ®_rule->power_rule;
 
                if (reg_rule->flags & NL80211_RRF_AUTO_BW)
-                       snprintf(bw, sizeof(bw), "%d KHz, %d KHz AUTO",
+                       snprintf(bw, sizeof(bw), "%d KHz, %u KHz AUTO",
                                 freq_range->max_bandwidth_khz,
                                 reg_get_max_bandwidth(rd, reg_rule));
                else