cocoa tiny fixes


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1322 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/vl.h b/vl.h
index 3fd7ce9..c8404e1 100644
--- a/vl.h
+++ b/vl.h
@@ -572,6 +572,9 @@
 /* sdl.c */
 void sdl_display_init(DisplayState *ds, int full_screen);
 
+/* cocoa.m */
+void cocoa_display_init(DisplayState *ds, int full_screen);
+
 /* ide.c */
 #define MAX_DISKS 4