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-avr32/global_data.h b/include/asm-avr32/global_data.h
index daf64bc..1863b6a 100644
--- a/include/asm-avr32/global_data.h
+++ b/include/asm-avr32/global_data.h
@@ -52,6 +52,7 @@
 #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 gd_t *gd asm("r5")