arm64: dts: marvell: mcbin: add comphy references to Ethernet ports

commit 760b3843fcd88f2a46e66eec08e2e6023a425809 upstream.

This patch adds comphy phandles to the Ethernet ports in the mcbin
device tree. The comphy is used to configure the serdes PHYs used by
these ports.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>