drm/amd/display: Clear update flags after update has been applied

[Why]
Since the surface/stream update flags aren't cleared after applying
updates, those same updates may be applied again in a future call to
update surfaces/streams for surfaces/streams that aren't actually part
of that update (i.e. applying an update for one surface/stream can
trigger unintended programming on a different surface/stream).

For example, when an update results in a call to
program_front_end_for_ctx, that function may call program_pipe on all
pipes. If there are surface update flags that were never cleared on the
surface some pipe is attached to, then the same update will be
programmed again.

[How]
Clear the surface and stream update flags after applying the updates.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3441
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3616
Cc: Melissa Wen <[email protected]>
Reviewed-by: Aric Cyr <[email protected]>
Signed-off-by: Josip Pavic <[email protected]>
Signed-off-by: Rodrigo Siqueira <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit 7671f62c10f2a4c77d89b39fd50fab7f918d6809)
Cc: [email protected]

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