Change all '$(...)' variable references into '${...}'
which makes the environment compatible with the hush shell.
WARNING: Support for the old '$(...)' syntax will be
discontinued in a later version.
diff --git a/include/configs/Sandpoint8240.h b/include/configs/Sandpoint8240.h
index 7c4feee..f4339ec 100644
--- a/include/configs/Sandpoint8240.h
+++ b/include/configs/Sandpoint8240.h
@@ -61,16 +61,16 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS					\
 	"netdev=eth0\0"							\
 	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
-		"nfsroot=$(serverip):$(rootpath)\0"			\
+		"nfsroot=${serverip}:${rootpath}\0"			\
 	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
-	"addip=setenv bootargs $(bootargs) "				\
-		"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)"	\
-		":$(hostname):$(netdev):off panic=1\0"			\
-	"net_self=tftp $(kernel_addr) $(bootfile);"			\
-		"tftp $(ramdisk_addr) $(ramdisk);"			\
+	"addip=setenv bootargs ${bootargs} "				\
+		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
+		":${hostname}:${netdev}:off panic=1\0"			\
+	"net_self=tftp ${kernel_addr} ${bootfile};"			\
+		"tftp ${ramdisk_addr} ${ramdisk};"			\
 		"run ramargs addip;"					\
-		"bootm $(kernel_addr) $(ramdisk_addr)\0"		\
-	"net_nfs=tftp $(kernel_addr) $(bootfile);"			\
+		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
+	"net_nfs=tftp ${kernel_addr} ${bootfile};"			\
 		"run nfsargs addip;bootm\0"				\
 	"rootpath=/opt/eldk/ppc_82xx\0"					\
 	"bootfile=/tftpboot/SP8240/uImage\0"				\