Revert "drm/bridge: dw-hdmi: Make DRM_DW_HDMI selectable"

This reverts commit 0209df3b, as the
commit it fixes (which is BTW not the commit in the Fixes: tag!) 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/b2d1a7a765e4af249f4c450383de6e8422647e2e.1713780345.git.geert+renesas@glider.be


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