qcacmn: Add support to send number of tx_desc limit to FW

Add support to send number of tx_desc limit to FW

Change-Id: I0465b0ca0579869d3278f8e55dd8957b07e39ac7
CRs-Fixed: 2530471

wmi/inc/wmi_unified_param.h

@@ -4685,6 +4685,7 @@ typedef enum {
 	wmi_pdev_param_set_tbtt_ctrl,
 	wmi_pdev_param_set_cmd_obss_pd_threshold,
 	wmi_pdev_param_set_cmd_obss_pd_per_ac,
+	wmi_pdev_param_set_cong_ctrl_max_msdus,
 	wmi_pdev_param_max,
 } wmi_conv_pdev_params_id;