drm/exynos: exynos_dp: Apply analogix_dp_finish_probe()

drm/exynos: exynos_dp: Apply analogix_dp_finish_probe()

Apply analogix_dp_finish_probe() in order to move the panel/bridge
parsing from Exynos side to the Analogix side.

Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> # rk3588
Link: https://patch.msgid.link/20260413132551.1049307-6-damon.ding@rock-chips.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>