drm/bridge: it6505: use drm_debug_enabled() in it6505_debug_print()

drm/bridge: it6505: use drm_debug_enabled() in it6505_debug_print()

As made mention of in commit ca9e53dfebf7 ("drm/print: rename drm_debug
to __drm_debug to discourage use"), we shouldn't explicitly refer to
__drm_debug in this context. So, use drm_debug_enabled() instead.

Fixes: d9992fae4dbc ("drm/bridge: add it6505 driver")
Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220910224816.15058-1-someguy@effective-light.com