qcacld-3.0: Add channel frequency into struct hdd_mon_set_ch_info

Add channel frequency(freq) into struct hdd_mon_set_ch_info and
populate its value where channel in the same structure is
populated.

Remove a few camel cases detected by checkpatch.

Change-Id: I5f0d64a88c054476739bc06887bffd37238b10fc
CRs-Fixed: 2496707
2 files changed