[media] v4l: vsp1: Ensure pipeline locking in resume path

The vsp1_pipeline_ready() and vsp1_pipeline_run() functions must be
called with the pipeline lock held, fix the resume code path.

Signed-off-by: Kieran Bingham <kieran+renesas@bingham.xyz>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>