Fixed build

(cherry picked from commit 0d04e9ea6ac25269cda0e2ba8073d284e7dc3607)

src/video/SDL_blit_N.c

@@ -22,6 +22,7 @@
 
 #ifdef SDL_HAVE_BLIT_N
 
+#include "SDL_pixels_c.h"
 #include "SDL_surface_c.h"
 #include "SDL_blit_copy.h"