Fix "implicit declaration" with memalign
diff --git a/src/render/ps2/SDL_render_ps2.c b/src/render/ps2/SDL_render_ps2.c
index 9ba671f..8eb5f23 100644
--- a/src/render/ps2/SDL_render_ps2.c
+++ b/src/render/ps2/SDL_render_ps2.c
@@ -26,6 +26,7 @@
#include "SDL_hints.h"
#include <kernel.h>
+#include <malloc.h>
#include <gsKit.h>
#include <dmaKit.h>
#include <gsToolkit.h>