net: ethernet: ti: am65-cpsw: Convert to PHYLINK

commit 561e7beab71d44d7819866cd28dcea3b99999d4a from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git



commit e8609e69 upstream.

Convert am65-cpsw driver and am65-cpsw ethtool to use Phylink APIs
as described at Documentation/networking/sfp-phylink.rst. All calls
to Phy APIs are replaced with their equivalent Phylink APIs.

No functional change intended. Use Phylink instead of conventional
Phylib, in preparation to add support for SGMII/QSGMII modes.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
[t-patil@ti.com: Ported the patch to ti-linux5.10.y on SDK 8.2]
Signed-off-by: Tanmay Patil <t-patil@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>