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/yucca.h b/include/configs/yucca.h
index 9538c0d..1e3571e 100644
--- a/include/configs/yucca.h
+++ b/include/configs/yucca.h
@@ -175,7 +175,7 @@
 		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
 	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"     \
 		"bootm\0"						\
-	"rootpath=/opt/eldk/ppc_4xx\0"				\
+	"rootpath=/opt/eldk/ppc_4xx\0"					\
 	"bootfile=yucca/uImage\0"					\
 	"kernel_addr=E7F10000\0"					\
 	"ramdisk_addr=E7F20000\0"					\
@@ -184,7 +184,7 @@
 	"update=protect off 2:4-7;era 2:4-7;"				\
 		"cp.b ${fileaddr} FFFB0000 ${filesize};"		\
 		"setenv filesize;saveenv\0"				\
-	"upd=run load;run update\0"					\
+	"upd=run load update\0"						\
 	"pciconfighost=1\0"						\
 	"pcie_mode=RP:EP:EP\0"						\
 	""