qcacld-3.0: Replace currentOperChannel with curr_op_freq

Replace currentOperChannel with curr_op_freq in files:
lim_ft_preauth.c
lim_ibss_peer_mgmt.c
lim_link_monitoring_algo.c
lim_process_action_frame.c
lim_process_assoc_req_frame.c
lim_process_message_queue.c
lim_process_mlm_host_roam.c
lim_process_mlm_req_messages.c
lim_process_mlm_rsp_messages.c
lim_process_sme_req_messages.c

Change-Id: Icf4654ee2454200833aa34ff0a8f27d0918172eb
CRs-Fixed: 2489683
10 files changed