ARM: dts: vf610-zii-dev-rev-b: Remove #address-cells and #size-cells property from at93c46d dt node

Remove #address-cells and #size-cells property from at93c46d device tree
node as it does not have child nodes.

Fixes: 1556063f ("ARM: dts: vf610-zii-dev: Add ZII development board.")
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>