qcacmn: Add WMI support for native 160MHZ

A service bit is added to indicate Firmware supports sending NSS ratio
information to Host and Host receives the NSS ratio information from
Firmware as part of service ready ext event. Save this service bit in
soc's extcap feature bit. Extract the NSS ratio info from service ready
ext event and save the results in wlan_psoc_host_mac_phy_caps structure
to calculate NSS value.

Change-Id: I8fbee48d872b0724bbb629ad38b3c959736a3c39
CRs-Fixed: 2612959
5 files changed