drm/bridge: imx8qxp-pxl2dpi: remove excess error message

drm/bridge: imx8qxp-pxl2dpi: remove excess error message

imx8qxp_pxl2dpi_find_next_bridge() already emits a DRM_DEV_ERROR() for
every error except -EPROBE_DEFER. The caller emits another one, which is
redundant. Remove the message in the caller and keep the two in
imx8qxp_pxl2dpi_find_next_bridge() as they are more informative about the
error cause.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20251216-drm-bridge-alloc-getput-drm_of_find_bridge-v3-14-b5165fab8058@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>