Remove unnecessary #address-cells/#size-cells to fix the following
DTC warning:

arch/arm/boot/dts/imx6q-utilite-pro.dtb: Warning (avoid_unnecessary_addr_size): /encoder: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>