drm/i915/vbt: Fix HDMI level shifter and max data rate bitfield sizes

The HDMI level shifter value should be 5 bits and the max data rate 3 bits.

Cc: Jani Nikula <jani.nikula@intel.com>
Reported-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171027201738.3640-1-ville.syrjala@linux.intel.comReviewed-by: NJani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/intel_vbt_defs.h

@@ -342,8 +342,8 @@ struct child_device_config {
 			u8 i2c_speed;
 			u8 dp_onboard_redriver;			/* 158 */
 			u8 dp_ondock_redriver;			/* 158 */
-			u8 hdmi_level_shifter_value:4;		/* 169 */
-			u8 hdmi_max_data_rate:4;		/* 204 */
+			u8 hdmi_level_shifter_value:5;		/* 169 */
+			u8 hdmi_max_data_rate:3;		/* 204 */
 			u16 dtd_buf_ptr;			/* 161 */
 			u8 edidless_efp:1;			/* 161 */
 			u8 compression_enable:1;		/* 198 */