ARM: dts: clearfog: keep dts alphabetically ordered

Keep the clearfog DTS file ordered alphabetically - Florian placed the
MDIO entry after pinctrl, which mis-orders the file.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>