anv: Write timestamp using MI_FLUSH_DW on blitter

anv: Write timestamp using MI_FLUSH_DW on blitter

On Blitter engine, we don't support PIPE_CONTROL, we have to update
memory locations using the MI_FLUSH_DW command.

v2:
- Handle video queue (Lionel)

Fixes: 056b0cb87f2 ("anv: add video engine support in various places")
Fixes: 5112b421462 ("anv: Handle end of pipe with MI_FLUSH_DW on transfer queue")

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26121>
(cherry picked from commit 8c9a7f77303b5acb4555a8c41b897da891fbe2da)