qcacmn: Add target if interface to get wmi_handle from pdev
Adding the target_if interface to get the wmi_handle from pdev,
the condidional flag is added due to different implemention of treating
the tgt_if_handle.
CRs-fixed: 2161374
Change-Id: Ia5206199afd5d41774928793d78e6648f03c181b