[FFmpeg-cvslog] lavu/tx: wrap missed string in NULL_IF_CONFIG_SMALL

[Lynne]

ffmpeg | branch: master | Lynne <dev at lynne.ee> | Mon Feb  7 04:22:19 2022 +0100| [04cc7a5548fa22241a2d6bb4f719fe8e0e0843f1] | committer: Lynne

lavu/tx: wrap missed string in NULL_IF_CONFIG_SMALL

It's the only one that isn't defined through the macros used elsewhere.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=04cc7a5548fa22241a2d6bb4f719fe8e0e0843f1
---

 libavutil/tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/tx.c b/libavutil/tx.c
index 2d8d21b65f..c648d4a1cd 100644
--- a/libavutil/tx.c
+++ b/libavutil/tx.c
@@ -274,7 +274,7 @@ static void ff_tx_null(AVTXContext *s, void *_out, void *_in, ptrdiff_t stride)
 }
 
 static const FFTXCodelet ff_tx_null_def = {
-    .name       = "null",
+    .name       = NULL_IF_CONFIG_SMALL("null"),
     .function   = ff_tx_null,
     .type       = TX_TYPE_ANY,
     .flags      = AV_TX_UNALIGNED | FF_TX_ALIGNED |