Replace "run load; run update" with conditionalized "run load update".

The latter version stops when "run load" fails for whatever reasons
rendering the combination *a lot* more secure.

Signed-off-by: Detlev Zundel <dzu@denx.de>
diff --git a/include/configs/TQM8272.h b/include/configs/TQM8272.h
index 9e408f4..ba0402d 100644
--- a/include/configs/TQM8272.h
+++ b/include/configs/TQM8272.h
@@ -87,7 +87,7 @@
 		"cp.b 300000 40000000 40000;"			        \
 		"setenv filesize;saveenv\0"				\
 	"cphwib=cp.b 4003fc00 33fc00 400\0"				\
-	"upd=run load;run cphwib;run update\0"				\
+	"upd=run load cphwib update\0"					\
 	""
 #define CONFIG_BOOTCOMMAND	"run flash_self"