POST: add POST_STOP flag

Don't run futher tests in case of a test fails that is marked as
POST_STOP.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
diff --git a/include/asm-sparc/global_data.h b/include/asm-sparc/global_data.h
index 7c29fc6..e3ef679 100644
--- a/include/asm-sparc/global_data.h
+++ b/include/asm-sparc/global_data.h
@@ -79,6 +79,8 @@
 #define	GD_FLG_RELOC	0x00001	/* Code was relocated to RAM            */
 #define	GD_FLG_DEVINIT	0x00002	/* Devices have been initialized        */
 #define	GD_FLG_SILENT	0x00004	/* Silent mode                          */
+#define	GD_FLG_POSTFAIL	0x00008	/* Critical POST test failed		*/
+#define	GD_FLG_POSTSTOP	0x00010	/* POST seqeunce aborted		*/
 
 #define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("%g7")