qcacld-3.0: Modify mlo supported bands based on roam_band_bitmap

roam_band_bitmap is updated based on the vendor command from
userspace, when NCHO band configuration is received.
Update the MLO support_link_band sent to firmware as part of the
RSO commands to intersect the user configured roam_band_bitmap
value.
This will restrict the firmware to advertise only those bands
sent in the WMI_ROAM_MLO_CONFIG_CMDID command, and firmware
will advertise only links corresponding to the configured
bands in the reassociation request.

WMI_ROAM_MLO_CONFIG_CMDID will be sent when
QCA_ATTR_ROAM_CONTROL_BAND_MASK attribute is received in roaming
subcmd: QCA_WLAN_VENDOR_ROAMING_SUBCMD_CONTROL_SET as part of
NCHO set band, since RSO stop, followed by start is sent during
set band to update PCL to firmware

Change-Id: Iba34411956bdb09502623bac9a51fb4663c632a8
CRs-Fixed: 3580693

components/umac/mlme/connection_mgr/core/src/wlan_cm_roam_offload.c

@@ -3032,6 +3032,7 @@ cm_roam_mlo_config(struct wlan_objmgr_psoc *psoc,
 		   struct wlan_roam_start_config *start_req)
 {
 	struct wlan_roam_mlo_config *roam_mlo_params;
+	struct rso_config *rso_cfg;
 
 	roam_mlo_params = &start_req->roam_mlo_params;
 	roam_mlo_params->vdev_id = wlan_vdev_get_id(vdev);
@@ -3039,6 +3040,18 @@ cm_roam_mlo_config(struct wlan_objmgr_psoc *psoc,
 		wlan_mlme_get_sta_mlo_conn_max_num(psoc);
 	roam_mlo_params->support_link_band =
 		wlan_mlme_get_sta_mlo_conn_band_bmp(psoc);
+
+	/*
+	 * Update the supported link band based on roam_band_bitmap
+	 * Roam band bitmap is modified during NCHO mode enable, disable and
+	 * regulatory supported band changes.
+	 */
+	rso_cfg = wlan_cm_get_rso_config(vdev);
+	if (!rso_cfg)
+		return;
+
+	roam_mlo_params->support_link_band &=
+					rso_cfg->roam_band_bitmask;
 }
 #else
 static void

components/umac/mlme/connection_mgr/dispatcher/inc/wlan_cm_roam_public_struct.h

@@ -1943,9 +1943,7 @@ enum roam_rt_stats_params {
  * @support_link_num: Configure max number of link mlo connection supports.
  *  Invalid value or 0 will use max supported value by fw.
  * @support_link_band: Configure the band bitmap of mlo connection supports
- *  Bit 0: 2G band support if 1
- *  Bit 1: 5G band support if 1
- *  Bit 2: 6G band support if 1
+ * The bits of the bitmap are defined by the enum reg_wifi_band
  */
 struct wlan_roam_mlo_config {
 	uint8_t vdev_id;