enic: cleanup of enic wq request completion path

enic: cleanup of enic wq request completion path

Cleans up the enic wq request completion path needed for 16k wq size
support.

Co-developed-by: Nelson Escobar <neescoba@cisco.com>
Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Co-developed-by: John Daley <johndale@cisco.com>
Signed-off-by: John Daley <johndale@cisco.com>
Signed-off-by: Satish Kharat <satishkh@cisco.com>
Link: https://patch.msgid.link/20250304-enic_cleanup_and_ext_cq-v2-7-85804263dad8@cisco.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>