MLK-15986-7: video: fbdev: Add MIPI DSI NORTHWEST support for 64bit platforms
This patch adds support for 64bit platforms, on top of existing 32bit
support. Among some noticeable differences that occurred for the MIPI DSI
Northwest controller: 4 lane support is added and power management differs.
MIPI DSI Northwest driver changes are added from Fancy Fang's commit
df47fccaf6 "MLK-15322-8 video: fbdev: imx_northwest_dsi: enable Northwest
mipi dsi driver".
Signed-off-by: Cristina Ciocan <cristina-mihaela.ciocan@nxp.com>