Add path from osif to target_if of sending multiple COEX config, and
whether send with new multiple COEX WMI CMD depends on WMI capability.
Optimize function hdd_send_coex_config_params() which has multiple
COEX config sending to target, use new multiple COEX config path.
Keep original legacy COEX function which is not included under
FEATURE_COEX.
Change-Id: Ibb2add908466915ad17204cb4a31a38d56446615
CRs-Fixed: 3651235