staging: media: tegra-video: csi: move CSI helpers to header
Move CSI helpers into the header for easier access from SoC-specific video
driver parts.
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # tegra20, parallel camera
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
authored by