drm: xlnx: dsi: Remove holes in dsi structure

commit 14386aef3b2dba407a71367e210aa7cc990854d3 from
https://github.com/Xilinx/linux-xlnx.git

 xlnx_rebase_v5.15

This patch reorder the structure fields to remove holes in
xlnx_dsi structure.

Signed-off-by: Venkateshwar Rao Gannavarapu <venkateshwar.rao.gannavarapu@amd.com>
State: pending
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>