common/sfc_efx/base: factor out no-op helper functions
common/sfc_efx/base: factor out no-op helper functions

When an action gets added to an action set, a special helper is
used to handle its arguments. There are actions which have no
arguments, and the corresponding helpers are duplicates in
fact. Use a unified no-op helper instead of them.

Signed-off-by: Ivan Malov <436a2feb05eb79a6862681e66bd0193220e8fb2d@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <4155e7bf8e0185127625dac6d84336299844982f@oktetlabs.ru>
Reviewed-by: Andy Moreton <adbee5d9b6a6a553b71b14302d03837591e26c9d@xilinx.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk