avutil/cuda_check: add missing dynlink_loader.h include

Fixes make checkheaders

Signed-off-by: James Almer <jamrial@gmail.com>

libavutil/cuda_check.h

@@ -20,6 +20,8 @@
 #ifndef AVUTIL_CUDA_CHECK_H
 #define AVUTIL_CUDA_CHECK_H
 
+#include "compat/cuda/dynlink_loader.h"
+
 typedef CUresult CUDAAPI cuda_check_GetErrorName(CUresult error, const char** pstr);
 typedef CUresult CUDAAPI cuda_check_GetErrorString(CUresult error, const char** pstr);