doc: Fix since marker in dmabuf to match a stable release

f2726a2b · Nicolas Dufresne · 7d820891 · f2726a2b
Commit f2726a2b authored Feb 14, 2018 by Nicolas Dufresne
--- a/gst-libs/gst/allocators/gstdmabuf.h
+++ b/gst-libs/gst/allocators/gstdmabuf.h
@@ -54,7 +54,7 @@ G_BEGIN_DECLS
 * In this case the importer element should check all incomming memory using
 * gst_is_dmabuf_memory().
 *
- * Since: 1.11
+ * Since: 1.12
 */
 #define GST_CAPS_FEATURE_MEMORY_DMABUF "memory:DMABuf"