Revert "drm: fix DRM_DISPLAY_DP_HELPER dependencies, part 2"

This reverts commit a57e191e, as the
commits it fixes will be reverted, too.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/37216404c77b4c677d3b3a80d12d6d4447a3f3a0.1713780345.git.geert+renesas@glider.be


Signed-off-by: Maxime Ripard <mripard@kernel.org>