drm/sun4i: Fix compilation error

drm/sun4i: Fix compilation error

Commit ea64761a54a2 ("drm/sun4i: hdmi: Switch to HDMI connector")
introduced a dependency that got renamed in a previous version, but
wasn't properly updated in that driver. Fix the name of the function.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405282205.EU7NUoeQ-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202405282248.U2lhPvCK-lkp@intel.com/
Fixes: ea64761a54a2 ("drm/sun4i: hdmi: Switch to HDMI connector")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240528151056.2104153-1-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>