Add support for the Comvetia i.MX6Q LXR2 board, which is
uses the Phytec PFLA02 SoM.
Based on the original work from Stefano Babic <sbabic@denx.de>.
The Phytec PFLA02 devicetrees are taken from kernel 6.11-rc7.
The imx6q-lxr.dts has been submitted upstream:
https://lore.kernel.org/linux-devicetree/20240913200906.1753458-3-festevam@gmail.com/
After it gets accepted in mainline (most likely in kernel 6.13),
the lxr2 board can then be switched to OF_UPSTREAM and these device trees
can be removed from U-Boot.
Signed-off-by: Fabio Estevam <festevam@denx.de>
