drm/i915/sdvo: Print out the i2c pin and slave address

To reduce the guesswork a bit let's print out the SDVO
device i2c bus and slave address during init.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230825134431.24391-7-ville.syrjala@linux.intel.com