render/SDL_yuv_sw.c: fix build after commit d234f7a

src/render/SDL_yuv_sw.c

@@ -25,6 +25,7 @@
 #if SDL_HAVE_YUV
 
 #include "SDL_yuv_sw_c.h"
+#include "../video/SDL_yuv_c.h"
 #include "SDL_cpuinfo.h"
 
 SDL_SW_YUVTexture *