arm64: dts: rockchip: Add IR receiver to BPI-R2Pro

Add the infrared receiver and its associated pinctrl entry.

Based on Aurelien Jarno's patchset:
https://lore.kernel.org/lkml/20220930051246.391614-14-aurelien@aurel32.net/



Signed-off-by: Alex Riabchenko <d3adme4t@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20221214155433.112257-1-linux@fw-web.de


Signed-off-by: Heiko Stuebner <heiko@sntech.de>