OMAPDSS: DSI: rename clkin4ddr to clkdco

We are creating a common DSS PLL code, so rename 'clkin4ddr' field,
which is DSI specific name, to 'clkdco' which is a generic name.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/omap2/dss/dss.h b/drivers/video/fbdev/omap2/dss/dss.h
index 45e255e..e2f0196 100644
--- a/drivers/video/fbdev/omap2/dss/dss.h
+++ b/drivers/video/fbdev/omap2/dss/dss.h
@@ -113,7 +113,7 @@
 struct dsi_clock_info {
 	/* rates that we get with dividers below */
 	unsigned long fint;
-	unsigned long clkin4ddr;
+	unsigned long clkdco;
 	unsigned long dsi_pll_hsdiv_dispc_clk;	/* OMAP3: DSI1_PLL_CLK
 						 * OMAP4: PLLx_CLK1 */
 	unsigned long dsi_pll_hsdiv_dsi_clk;	/* OMAP3: DSI2_PLL_CLK