clk: imx: imx8qxp: Add LVDS bypass clocks

clk: imx: imx8qxp: Add LVDS bypass clocks

For iMX8QXP and iMX8QM, add bypass clocks and register some of the LVDS
clocks with imx_clk_scu2 as the parent needs to explicitly set.

In order to make sure MIPI DSI works well after suspend/resume, the LVDS
pixel and phy clocks must be initialized before the MIPI tx_esacpe
and rx_escape clocks. LVDS phy, LVDS pixel, tx_escape, and rx_esacpe are all
on the same MSLICE. They all share the same clock parent. So, setting the
parent source or rate affects all of these clocks. In the LVDS use case the
MIPI tx_escape and rx_escape are not saved and restored. So, LVDS works for
either clock initialization order. For MIPI case, LVDS must be initialized first.

Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.com>
Signed-off-by: Oliver F. Brown <oliver.brown@oss.nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20240607133347.3291040-12-peng.fan@oss.nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>