mac80211_hwsim: don't shadow a global variable

The argument to hwsim_init_s1g_channels() shadows a global,
change that to be clearer.

Link: https://lore.kernel.org/r/20220214173004.66bac90d64a8.I3e878e42bf2feecbb0a6ca38a68c236c23a8c9e6@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/mac80211_hwsim.c

@@ -475,16 +475,16 @@ static const struct ieee80211_sta_s1g_cap hwsim_s1g_cap = {
 		     0 },
 };
 
-static void hwsim_init_s1g_channels(struct ieee80211_channel *channels)
+static void hwsim_init_s1g_channels(struct ieee80211_channel *chans)
 {
 	int ch, freq;
 
 	for (ch = 0; ch < NUM_S1G_CHANS_US; ch++) {
 		freq = 902000 + (ch + 1) * 500;
-		channels[ch].band = NL80211_BAND_S1GHZ;
-		channels[ch].center_freq = KHZ_TO_MHZ(freq);
-		channels[ch].freq_offset = freq % 1000;
-		channels[ch].hw_value = ch + 1;
+		chans[ch].band = NL80211_BAND_S1GHZ;
+		chans[ch].center_freq = KHZ_TO_MHZ(freq);
+		chans[ch].freq_offset = freq % 1000;
+		chans[ch].hw_value = ch + 1;
 	}
 }