currently the driver just ignore the channel numbers greater
than 165 for 80MHZ channel bonding, which results in best
channel selected as 169, 173 in 20MHZ bandwidth as the
respective channels does not support 80, or even 40 MHZ
channel bandwidth.
Fix is to assign the maximum weight to channel numbers greater
than 165, so that they do not get selected as best channel
for 80MHZ bandwidth operation.
Change-Id: I44c5073a806f39d98103681267faa317a6b6d73b
CRs-Fixed: 2375375
1dea75b34d