net: phy: realtek: convert RTL8211F to .disable_autonomous_eee

net: phy: realtek: convert RTL8211F to .disable_autonomous_eee

The RTL8211F previously unconditionally disabled PHY-mode EEE in
config_init. Convert this to use the new .disable_autonomous_eee
callback so it is only disabled when the MAC indicates EEE support
via phy_support_eee().

This preserves PHY-autonomous EEE for MACs that do not support EEE,
while still disabling it when the MAC manages LPI.

Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Link: https://patch.msgid.link/20260406-devel-autonomous-eee-v1-3-b335e7143711@tipi-net.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>