wifi: iwlwifi: mvm: set properly mac header

In the driver we only use skb_put* for adding data to the skb, hence data
never moves and skb_reset_mac_haeder would set mac_header to the first
time data was added and not to mac80211 header, fix this my using the
actual len of bytes added for setting the mac header.

Fixes: 3f7a9d57 ("wifi: iwlwifi: mvm: simplify by using SKB MAC header pointer")
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240510170500.12f2de2909c3.I72a819b96f2fe55bde192a8fd31a4b96c301aa73@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c

@@ -2450,8 +2450,11 @@ void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
 	 *
 	 * We mark it as mac header, for upper layers to know where
 	 * all radio tap header ends.
+	 *
+	 * Since data doesn't move data while putting data on skb and that is
+	 * the only way we use, data + len is the next place that hdr would be put
 	 */
-	skb_reset_mac_header(skb);
+	skb_set_mac_header(skb, skb->len);
 
 	/*
 	 * Override the nss from the rx_vec since the rate_n_flags has