drm/bridge: display-connector: Fix I2C adapter resource leak

drm/bridge: display-connector: Fix I2C adapter resource leak

If the probe function returns an error after getting the I2C adapter for
DDC, the reference to the adapter is never released. Fix it by releasing
it in the bridge .destroy() handler.

There is no need to test the ddc pointer with !IS_ERR(), as
of_get_i2c_adapter_by_node() returns NULL on error.

Fixes: 2e2bf3a5584d ("drm/bridge: display-connector: add DP support")
Cc: stable@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patch.msgid.link/20260717184836.2017386-1-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>