ice: dpll: Remove newline at the end of a netlink error message

Netlink error messages should not have a newline at the end of the
string.

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Acked-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250226093904.6632-6-gal@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>