qcacld-3.0: Set 5GHz channel for NDI start and remove the INI

NDI Create from upper layers also does a start bss with the
channel specified with INI "gnan_datapath_ndi_channel". It
defaults to channel 6 if no value is specified. For targets
with 2x2 DBS MAC Configuration this cannot happen without
a DBS mode change. Since this channel is not indicative of
the actual NDI channel, send a 5GHz NAN Social channel for
the BSS start to avoid the DBS mode change.

Send 5GHz NAN Social channel for NDI bss start and remove
the corresponding INI.

Change-Id: I40428f5eb4071f7c1d3934c6279316aad8082c03
CRs-Fixed: 2364619
6 files changed