qcacmn: Add dfs_set_cfreq2 flag in scan channel list params

Add dfs_set_cfreq2 flag (indicating secondary DFS set) in addition to
dfs_set (indicating primary DFS set) flag in scan channel list update
params to be sent to FW.

Change-Id: I67670f1d5b128c57c0fad03d9f9b14a99f1d38f6
CRs-Fixed: 2496923
1 file changed