ARM: dts: meson8b: odroid-c1: enable the IR receiver

The Odroid-C1 comes with an IR receiver. It is connected to the GPIOAO_7
pin and thus using the SoC's internal IR decoder.

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