nitrogen6x-cwc: DT: enable OV5642 on IPU1/CSI1

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
hookswitch: add sysfs entries for LED and offhook state

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
nitrogen6x-cwc: DT: OV5642 camera is on IPU0/CSI0

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
dts: fix HDMI issue