qcacmn: Add support for FW cap for chan_width_switch_cmd

WMI_PEER_CHAN_WIDTH_SWITCH_CMDID sent from host fragments the
command based on the size of the WMI buffer.

Add support to instead use a FW regulated value taken from the
WMI service ready extended_2 event.

CRs-Fixed: 2684788
Change-Id: Iaeccf785c64b385bf2ad6bc372da239981143fa0

target_if/init_deinit/inc/service_ready_param.h

@@ -368,6 +368,7 @@ struct wlan_psoc_host_service_ext_param {
  * bdf_reg_db_version_major: BDF REG DB version major number
  * bdf_reg_db_version_minor: BDF REG DB version minor number
  * @num_dbr_ring_caps: Number of direct buf rx ring capabilities
+ * @chwidth_num_peer_caps: Peer limit for peer_chan_width_switch WMI cmd
  */
 struct wlan_psoc_host_service_ext2_param {
 	uint8_t reg_db_version_major;
@@ -375,6 +376,7 @@ struct wlan_psoc_host_service_ext2_param {
 	uint8_t bdf_reg_db_version_major;
 	uint8_t bdf_reg_db_version_minor;
 	uint32_t num_dbr_ring_caps;
+	uint32_t chwidth_num_peer_caps;
 };
 
 #endif /* _SERVICE_READY_PARAM_H_*/