Added the new function at the end so we don't break the ABI

src/dynapi/SDL_dynapi_procs.h

@@ -70,7 +70,6 @@ SDL_DYNAPI_PROC(void,SDL_MemoryBarrierAcquire,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_RegisterApp,(char *a, Uint32 b, void *c),(a,b,c),return)
 SDL_DYNAPI_PROC(void,SDL_UnregisterApp,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_Direct3D9GetAdapterIndex,(int a),(a),return)
-SDL_DYNAPI_PROC(void,SDL_DXGIGetOutputInfo,(int a,int *b, int *c),(a,b,c),)
 SDL_DYNAPI_PROC(IDirect3DDevice9*,SDL_RenderGetD3D9Device,(SDL_Renderer *a),(a),return)
 #endif
 
@@ -604,3 +603,6 @@ SDL_DYNAPI_PROC(void,SDL_GL_ResetAttributes,(void),(),)
 SDL_DYNAPI_PROC(SDL_bool,SDL_HasAVX,(void),(),return)
 SDL_DYNAPI_PROC(SDL_AssertionHandler,SDL_GetDefaultAssertionHandler,(void),(),return)
 SDL_DYNAPI_PROC(SDL_AssertionHandler,SDL_GetAssertionHandler,(void **a),(a),return)
+#ifdef __WIN32__
+SDL_DYNAPI_PROC(void,SDL_DXGIGetOutputInfo,(int a,int *b, int *c),(a,b,c),)
+#endif