media: renesas: vsp1: wpf: Propagate vsp1_rwpf_init_ctrls()

media: renesas: vsp1: wpf: Propagate vsp1_rwpf_init_ctrls()

vsp1_wpf.c calls vsp1_rwpf_init_ctrls() to initialize controls that
are common between RPF and WPF.

However, the vsp1_wpf.c implementation does not check for the function
call return value. Fix this by propagating to the caller the return
value.

While at it, drop a duplicated error message in wpf_init_controls() as
the caller already report it.

Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20250401-v4h-iif-v7-3-cc547c0bddd5@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>