arm64: dts: imx8mq-librem5: add rotation and orientation to selfie camera

see Documentation/devicetree/bindings/media/video-interface-devices.yaml
and
https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/ext-ctrls-camera.html
2 jobs for hi846_updates_20210831 in 65 minutes and 35 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #363779
librem5
build:aarch64

00:20:00

passed #363780
librem5:arm64
build:deb

01:05:35