common/sfc_efx/base: add missing handler for 1-byte fields

common/sfc_efx/base: add missing handler for 1-byte fields

One may set RECIRC_ID in a MAE action rule specification.
This field is not a network one, and its handling goes
to the code snippet which does not recognise field
sizes other than 4 bytes. Add the missing handler.

Fixes: 3a73dcfdb255 ("common/sfc_efx/base: match on recirc ID in action rules")
Cc: stable@dpdk.org
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>