preloader: Reserve some space for the shared user data.

loader/preloader.c

@@ -109,7 +109,7 @@
 static struct wine_preload_info preload_info[] =
 {
     { (void *)0x00000000, 0x00110000 },  /* DOS area */
-    { (void *)0x80000000, 0x01000000 },  /* shared heap */
+    { (void *)0x7ffe0000, 0x01020000 },  /* shared user data + shared heap */
     { (void *)0x00110000, 0x1fef0000 },  /* PE exe range (may be set with WINEPRELOADRESERVE), defaults to 512mb */
     { 0, 0 }                             /* end of list */
 };