qcacmn: Clear Chan freq in wlan_cm_connect_req of partner link
Partner link connect request is copied from primary link.
The upper layer may include BSS channel freq preference in
OS connect req. We have to clear it for partner link connecting,
otherwise the scm_filter_match will filter out the mlo partner
candidate and cause partner connect failed.
Change-Id: I9ca8f2baf5f7e660ed0b72c1dffa886f1c1e8f11
CRs-Fixed: 3320085