ARM: dt: mvebu: ix4-300d: Cleanup NAND partition ranges

Prefix all partition reg properties to 32-bit to ease readability.
While at it, also remove a stale x in front of boot partition
offset and make some upper-case hex numbers lower-case.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>