Change all '$(...)' variable references into '${...}'
which makes the environment compatible with the hush shell.
WARNING: Support for the old '$(...)' syntax will be
discontinued in a later version.
diff --git a/include/configs/ICU862.h b/include/configs/ICU862.h
index 73ff0a3..cd17935 100644
--- a/include/configs/ICU862.h
+++ b/include/configs/ICU862.h
@@ -73,8 +73,8 @@
 #undef	CONFIG_BOOTARGS
 #define CONFIG_BOOTCOMMAND							\
 	"bootp;" 								\
-	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " 	\
-	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" 	\
+	"setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " 	\
+	"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off;" 	\
 	"bootm"
 
 #undef	CONFIG_WATCHDOG			/* watchdog disabled		*/