qcacld-3.0: Convert SME code legacy channel ID usage

Modify the following 2 APIs' code and parameters to use frequency
instead of channel ID:
sme_get_operation_channel
wlan_hdd_update_survey_info

Change-Id: I90f05cc7fedd061bf08b47299d2fb6530c470136
CRs-Fixed: 2554149
3 files changed