OMAP: DSS2: remove extra includes from include/video/omapdss.h

omapdss.h included platform_device.h and atomic.h, neither of which is
needed by omapdss.h. Remove those includes from omapdss.h, and fix the
affected .c files which did not include platform_device.h even though
they should.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index d9489d5..d0b3f81 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -28,6 +28,7 @@
 #include <linux/delay.h>
 #include <linux/seq_file.h>
 #include <linux/clk.h>
+#include <linux/platform_device.h>
 
 #include <video/omapdss.h>
 #include <plat/clock.h>