wifi: iwlwifi: mvm: Advertise EHT capabilities

Add support for advertising EHT capabilities if supported by
device SKU and not disabled by module parameters.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://lore.kernel.org/r/20221122220713.6bc00d851794.I214005645f3da21d8f2458a70355deeca04a19e8@changeid


Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>