wifi: iwlwifi: mvm: check own capabilities for EMLSR

There may be different hardware or configurations supported,
so check for our own EMLSR capability before allowing it to
be used, in addition to checking the AP's.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240208185302.036443611696.If33caabd7cf372834287863b40b2d6d1ef1ca3f7@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>