drm/sun4i: fix missing component unbind on bind errors

drm/sun4i: fix missing component unbind on bind errors

commit 5622a01b987fa52bf7308a379a435f35d4f1df3e upstream.

Make sure to unbind all subcomponents when binding the aggregate device
fails.

Fixes: e656da9b8498 ("drm: Add Allwinner A10 Display Engine support")
Cc: stable@vger.kernel.org      # 4.7
Cc: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230306103242.4775-1-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>