android/surface: use calloc

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/video_output/android/surface.c

@@ -233,7 +233,7 @@ static int Open(vlc_object_t *p_this)
     sys->fmt = fmt;
 
     /* Create the associated picture */
-    picture_sys_t *picsys = malloc(sizeof(*picsys));
+    picture_sys_t *picsys = calloc(1, sizeof(picture_sys_t));
     if (unlikely(picsys == NULL))
         goto error;
     picsys->sys = sys;