wifi: iwlwifi: mvm: show full firmware ID in debugfs

The firmware prefix is unused today, but it might still be
useful to have some information. Since the prefix will get
the intel/ directory in some cases, replace the prefix by
the full FW id which has all the information.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240527190228.527a1c72996d.If7588b854149d51605031fc9a70a650534351ef4@changeid


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