qcacld-3.0: Check ch_width for dot11f vht and he caps

Currently as STA, when populating channel width set, only max BW
advertised by target are considered. However issue is that due to
regulatory limitations, the max BW advertised may not be the real
operating BW used by our device. Under such conditions, there'll
be conflicts between AP's view of our capablities and the real
ones host configured to target.

Therefore when populating supported channel width set for VHT and HE
capabilities, take current session's channel width into account so
so that capabilities advertised could correctly reflect current
running configurations.

Change-Id: Ib072c3e4d36d5c3fbd5504d94a936175d1a92db0
CRs-Fixed: 3047338