qcacmn: Add support for the new NAN EXT vendor command

As part of the NAN Discovery DBS support, new vendor command
- QCA_NL80211_VENDOR_SUBCMD_NAN_EXT - has been defined that
can carry the binary blob encapsulated within an attribute
and can carry additional attributes to enhance the NAN command
interface. Add the related definitions to support this command.

Add definitions to support the new NAN EXT vendor command.

Change-Id: I83c12c7512066434f8974619e1d953ac78d3a40d
CRs-Fixed: 2339032
3 files changed