avcodec/nvenc: Report correct required driver versions for SDK 9.0

We need a new #ifdef condition when reporting the required driver
versions for Video SDK 9.0.

Author: philipl

libavcodec/nvenc.c

@@ -122,7 +122,13 @@ static int nvenc_print_error(void *log_ctx, NVENCSTATUS err,
 
 static void nvenc_print_driver_requirement(AVCodecContext *avctx, int level)
 {
-#if NVENCAPI_CHECK_VERSION(8, 1)
+#if NVENCAPI_CHECK_VERSION(9, 0)
+# if defined(_WIN32) || defined(__CYGWIN__)
+    const char *minver = "418.81";
+# else
+    const char *minver = "418.30";
+# endif
+#elif NVENCAPI_CHECK_VERSION(8, 1)
 # if defined(_WIN32) || defined(__CYGWIN__)
     const char *minver = "390.77";
 # else