devlink: Fix setting max_io_eqs as the sole attribute

devlink: Fix setting max_io_eqs as the sole attribute

dl_opts_put() function missed to consider IO eqs option flag.
Due to this, when max_io_eqs setting is applied only when it
is combined with other attributes such as roce/hw_addr.
When max_io_eqs is the only attribute set, it missed to
apply the attribute.

Fix it by adding the missing flag.

Fixes: e8add23c59b7 ("devlink: Support setting max_io_eqs")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>