OMAP2PLUS: DSS2: Change enum "dss_clk_source" to "omap_dss_clk_source"

Change enum dss_clk_source to omap_dss_clock_source and move it to
'plat/display.h'. Change the enum members to attach "OMAP_" in the beginning.
These changes are done in order to specify the clock sources for DSS in the
board file.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 21de352..cbaaa35 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2356,10 +2356,10 @@
 	unsigned long r = 0;
 
 	switch (dss_get_dispc_clk_source()) {
-	case DSS_CLK_SRC_FCK:
+	case OMAP_DSS_CLK_SRC_FCK:
 		r = dss_clk_get_rate(DSS_CLK_FCK);
 		break;
-	case DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
+	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
 		r = dsi_get_pll_hsdiv_dispc_rate();
 		break;
 	default:
@@ -2380,10 +2380,10 @@
 	lcd = FLD_GET(l, 23, 16);
 
 	switch (dss_get_lcd_clk_source(channel)) {
-	case DSS_CLK_SRC_FCK:
+	case OMAP_DSS_CLK_SRC_FCK:
 		r = dss_clk_get_rate(DSS_CLK_FCK);
 		break;
-	case DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
+	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
 		r = dsi_get_pll_hsdiv_dispc_rate();
 		break;
 	default:
@@ -2412,8 +2412,8 @@
 {
 	int lcd, pcd;
 	u32 l;
-	enum dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
-	enum dss_clk_source lcd_clk_src;
+	enum omap_dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
+	enum omap_dss_clk_source lcd_clk_src;
 
 	enable_clocks(1);