[FFmpeg-cvslog] avutil/aes_ctr: Add proper doxy group

[Marvin Scholz]

ffmpeg | branch: master | Marvin Scholz <epirat07 at gmail.com> | Sat Sep 24 19:12:27 2022 +0200| [c2c4ef6ae410cd8dc774a6fe2acd01132f4637af] | committer: Anton Khirnov

avutil/aes_ctr: Add proper doxy group

So it will be properly listed along the other crypto modules
in the documentation.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c2c4ef6ae410cd8dc774a6fe2acd01132f4637af
---

 libavutil/aes_ctr.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavutil/aes_ctr.h b/libavutil/aes_ctr.h
index 4e9fda7aca..4d80c71326 100644
--- a/libavutil/aes_ctr.h
+++ b/libavutil/aes_ctr.h
@@ -22,6 +22,12 @@
 #ifndef AVUTIL_AES_CTR_H
 #define AVUTIL_AES_CTR_H
 
+/**
+ * @defgroup lavu_aes_ctr AES-CTR
+ * @ingroup lavu_crypto
+ * @{
+ */
+
 #include <stdint.h>
 
 #include "attributes.h"