ice: fix PHY config on media change with link-down-on-close

ice: fix PHY config on media change with link-down-on-close

Commit 1a3571b5938c ("ice: restore PHY settings on media insertion")
introduced separate flows for setting PHY configuration on media
present: ice_configure_phy() when link-down-on-close is disabled, and
ice_force_phys_link_state() when enabled. The latter incorrectly uses
the previous configuration even after module change, causing link
issues such as wrong speed or no link.

Unify PHY configuration into a single ice_phy_cfg() function with a
link_en parameter, ensuring PHY capabilities are always fetched fresh
from hardware.

Fixes: 1a3571b5938c ("ice: restore PHY settings on media insertion")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260416-iwl-net-submission-2026-04-14-v2-5-686c33c9828d@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>