arm64: dts: ti: k3-am65-mcu-cpsw: sync to lkml

commit ba86a6e9 upstream.

Sync MCU CPSW to LKML version as max as possible.
Used initial LKML commit to identify that code already upstream.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>