drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little

When a YCBCR format is selected, we can merely copy the colorimetry
information directly as we use the same definitions for both the
unpacked AVI info frame and the hdmi_data_info structure.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/gpu/drm/bridge/dw_hdmi.c

@@ -943,10 +943,7 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 			frame.extended_colorimetry =
 				HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
 	} else if (hdmi->hdmi_data.enc_out_format != RGB) {
-		if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601)
-			frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
-		else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/
-			frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
+		frame.colorimetry = hdmi->hdmi_data.colorimetry;
 		frame.extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
 	} else { /* Carries no data */
 		frame.colorimetry = HDMI_COLORIMETRY_NONE;