qcacmn: enable MEC support for Beryllium

The multicast echo check feature is moved to hardware in
Beryllium. Enable this hardware feature and also disable
the MEC handing code for Beryllium in the host.

Change-Id: I86d319963191f3ed77aba16dcccbc659906edd9f

dp/inc/cdp_txrx_ops.h

@@ -1127,6 +1127,9 @@ struct ol_if_ops {
 	uint8_t (*freq_to_band)(struct cdp_ctrl_objmgr_psoc *psoc,
 				uint8_t pdev_id, uint16_t freq);
 
+	QDF_STATUS(*set_mec_timer)(struct cdp_ctrl_objmgr_psoc *psoc,
+				   uint8_t vdev_id, uint16_t mec_timer_val);
+
 #ifdef ATH_SUPPORT_NAC_RSSI
 	int (*config_fw_for_nac_rssi)(struct cdp_ctrl_objmgr_psoc *psoc,
 				      uint8_t pdev_id,