drm/omap: remove unneeded conversions to bool

Found with scripts/coccinelle/misc/boolconv.cocci.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/dss/dispc.c

@@ -1679,7 +1679,7 @@ static void dispc_ovl_set_scaling_uv(enum omap_plane plane,
 {
 	int scale_x = out_width != orig_width;
 	int scale_y = out_height != orig_height;
-	bool chroma_upscale = plane != OMAP_DSS_WB ? true : false;
+	bool chroma_upscale = plane != OMAP_DSS_WB;
 
 	if (!dss_has_feature(FEAT_HANDLE_UV_SEPARATE))
 		return;
@@ -3110,9 +3110,9 @@ static bool _dispc_mgr_pclk_ok(enum omap_channel channel,
 		unsigned long pclk)
 {
 	if (dss_mgr_is_lcd(channel))
-		return pclk <= dispc.feat->max_lcd_pclk ? true : false;
+		return pclk <= dispc.feat->max_lcd_pclk;
 	else
-		return pclk <= dispc.feat->max_tv_pclk ? true : false;
+		return pclk <= dispc.feat->max_tv_pclk;
 }
 
 bool dispc_mgr_timings_ok(enum omap_channel channel,