drm/edid: fix repeated words in comments

Delete the redundant word 'on'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907113644.32831-1-yuanjilin@cdjrlc.com

drivers/gpu/drm/drm_edid.c

@@ -6825,7 +6825,7 @@ drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
 	 * by non-zero YQ when receiving RGB. There doesn't seem to be any
 	 * good way to tell which version of CEA-861 the sink supports, so
 	 * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
-	 * on on CEA-861-F.
+	 * on CEA-861-F.
 	 */
 	if (!is_hdmi2_sink(connector) ||
 	    rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)