[media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c

This isn't really a part of any interface drivers are expected to use. In
order to keep drivers from using it, hide it in media-entity.c. This was
always an arbitrary number and should be removed in the long run.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 5bd6f88..32a5f8c 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -276,6 +276,11 @@
 #define link_top(en)	((en)->stack[(en)->top].link)
 #define stack_top(en)	((en)->stack[(en)->top].entity)
 
+/*
+ * TODO: Get rid of this.
+ */
+#define MEDIA_ENTITY_MAX_PADS		63
+
 /**
  * media_entity_graph_walk_init - Allocate resources for graph walk
  * @graph: Media graph structure that will be used to walk the graph