Some malformed comments were discovered when generating
the official documentation of wlan cfg ini items.
Refine the documentation text of the following items
in one batch:
gEnableVendorVhtFor24GHzBand
hostArpOffload
ssdp
gEnableDynamicDTIM
gEnableModulatedDTIM
Change-Id: I3cd617e52e86e2a890e35edb33b37ba3df8f4f6e
CRs-Fixed: 2414259