net: phy: micrel: Fix the KSZ9131 MDI-X status issue

The MDIX status is not accurately reflecting the current state after the link
partner has manually altered its MDIX configuration while operating in forced
mode.

Access information about Auto mdix completion and pair selection from the
KSZ9131's Auto/MDI/MDI-X status register

Fixes: b64e6a87

 ("net: phy: micrel: Add PHY Auto/MDI/MDI-X set driver for KSZ9131")
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240725071125.13960-1-Raju.Lakkaraju@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>