[SDL_Tizen] Add SDL_vulkan header to SDL.h

Change-Id: Iba8ec37dfde163f071d17bf0248f984b02626829
Signed-off-by: huiyu.eun <huiyu.eun@samsung.com>

diff --git a/include/SDL.h b/include/SDL.h
index d48d9d4..3d58fab 100755 (executable)
--- a/include/SDL.h
+++ b/include/SDL.h
@@ -57,6 +57,7 @@
 #include "SDL_timer.h"
 #include "SDL_version.h"
 #include "SDL_video.h"
+#include "SDL_vulkan.h"
 
 #include "begin_code.h"
 /* Set up for C function definitions, even when using C++ */