qcacld-3.0: Replace channel with freq in hdd_context

Replacing channel with freq in the following structures:

hdd_context: last_acs_channel_list -> last_acs_freq_list
sap_context: channelList -> freq_list
sap_acs_scan_complete_event: channellist -> freq_list

Change-Id: If04ba42831b5134952e0d71a18b207d0a6f3c5b2
CRs-Fixed: 2497615
10 files changed