net: phy: microchip_t1: Cable Diagnostics for lan887x

JIRA: https://issues.redhat.com/browse/RHEL-57766

commit b2c8a50
Author: Divya Koppera <divya.koppera@microchip.com>
Date:   Mon Sep 9 17:13:39 2024 +0530

    net: phy: microchip_t1: Cable Diagnostics for lan887x

    Add support for cable diagnostics in lan887x PHY.
    Using this we can diagnose connected/open/short wires and
    also length where cable fault is occurred.

    Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
    Reviewed-by: Andrew Lunn <andrew@lunn.ch>
    Link: https://patch.msgid.link/20240909114339.3446-1-divya.koppera@microchip.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Izabela Bakollari <ibakolla@redhat.com>

Author: Izabela Bakollari