ARM: mvebu: update v5 defconfig

This just regenerates the v5 mvebu defconfig with the latest
defaults so as to avoid too much fuzz when applying patches to
it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>