test: dm: test-fdt: Add decode_panel_timing test

To test decode_panel_timing add a panel-timings node
and a DM test for decode panel timingd by matching
the panel timing node parameters.

Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2 files changed