drm/omap: rename dss_get_generic_clk_source_name()

Now that there is no "non-generic" version of the function to get the
clock source name, lets rename dss_get_generic_clk_source_name() to
dss_get_clk_source_name().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 398cba5..e3eaae9 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -3433,7 +3433,7 @@
 	lcd_clk_src = dss_get_lcd_clk_source(channel);
 
 	seq_printf(s, "%s clk source = %s\n", mgr_desc[channel].name,
-		dss_get_generic_clk_source_name(lcd_clk_src));
+		dss_get_clk_source_name(lcd_clk_src));
 
 	dispc_mgr_get_lcd_divisor(channel, &lcd, &pcd);
 
@@ -3455,7 +3455,7 @@
 	seq_printf(s, "- DISPC -\n");
 
 	seq_printf(s, "dispc fclk source = %s\n",
-			dss_get_generic_clk_source_name(dispc_clk_src));
+			dss_get_clk_source_name(dispc_clk_src));
 
 	seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());