arch/arm64: dts: change 10gbase-kr to 10gbase-r in Armada

Change all 10G port modes in Armada family device trees from
10gbase-kr to 10gbase-r

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>