Revert "media: renesas: vsp1: Initialize format on all pads"

Revert "media: renesas: vsp1: Initialize format on all pads"

This reverts commit 133ac42af0a1b389e8b7b3dc7c1cc8c30ff162b6.

The change to format initialization, along with the change to format
propagation in the BRx in commit 937f3e6b51f1 ("media: renesas: vsp1:
brx: Fix format propagation"), broke configuration of the DRM pipeline.
Revert it to fix the regression.

The original commit was meant to fix a v4l2-compliance failure, with no
known userspace applications being affected beside test tools. Reverting
is the simplest option, a more comprehensive fix can be developed (and
tested more thoroughly) later.

Fixes: 133ac42af0a1 ("media: renesas: vsp1: Initialize format on all pads")
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # On RZ/T2H
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20260506215650.1897177-2-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>