ice: remove comment about not supporting driver reinit

Since commit 31c8db2c ("ice: implement devlink reinit action"), the ice
driver does support driver re-initialization via devlink reload. Remove the
stale comment indicating that the driver lacks this support from the
ice_devlink_ops structure.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>