drm/i915: Sink rate read should be saved in deca-kHz

The sink rate read from supported link rate table is in KHz as per spec
while in drm, the saved clock is in deca-KHz. So divide the link rate by
10 before storing.

Reading of rates was added by:
commit fc0f8e25 ("drm/i915/skl: Read sink supported rates from edp
panel")

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NSonika Jindal <sonika.jindal@intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/intel_dp.c

@@ -3812,7 +3812,8 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
 			if (val == 0)
 				break;
 
-			intel_dp->sink_rates[i] = val * 200;
+			/* Value read is in kHz while drm clock is saved in deca-kHz */
+			intel_dp->sink_rates[i] = (val * 200) / 10;
 		}
 		intel_dp->num_sink_rates = i;
 	}