ARM64: dts: meson-gxbb: Add Infrared Remote Controller decoder

This adds the Infrared Remote Controller node so boards with an IR
remote can simply enable it.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>