In case of 320 MHz BW, 6 GHz channel numbers are overlapping
with existing 2.4 GHz and 5 GHz channel numbers.
If DUT connected with one of overlapped channel, To identify
exact band and corresponding bonded channels driver should
pass 320 MHz center frequency to
wlan_reg_get_bonded_chan_entry() as a argument along with
connected 6 GHz frequency and channel width.
Fix is to use 320 MHz center frequency to compute bonded
channels in mlme_update_freq_in_scan_start_req().
Change-Id: I7616f0379d64e33f9bd4a208253db0a390158f77
CRs-Fixed: 3606575