ARM: dts: imx53-ppd: Remove unnecessary #address/#size-cells

ARM: dts: imx53-ppd: Remove unnecessary #address/#size-cells

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

arch/arm/boot/dts/imx53-ppd.dtb: Warning (avoid_unnecessary_addr_size): /power-gpio-keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
arch/arm/boot/dts/imx53-ppd.dtb: Warning (avoid_unnecessary_addr_size): /touch-lock-key: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>