Don't let the system /usr/bin/install try to strip target binaries

since it is too stupid to know about cross compilation, and will
therefore try to use the system strip command, too ill effect.

package/dhcp/dhcp.mk

@@ -38,7 +38,7 @@ $(DHCP_DIR)/$(DHCP_RELAY_BINARY): $(DHCP_DIR)/.configured
 
 $(TARGET_DIR)/$(DHCP_SERVER_TARGET_BINARY): $(DHCP_DIR)/$(DHCP_RELAY_BINARY)
 	(cd $(TARGET_DIR)/var/lib; ln -sf /tmp dhcp)
-	$(INSTALL) -s -m 0755 -D $(DHCP_DIR)/$(DHCP_SERVER_BINARY) $(TARGET_DIR)/$(DHCP_SERVER_TARGET_BINARY)
+	$(INSTALL) -m 0755 -D $(DHCP_DIR)/$(DHCP_SERVER_BINARY) $(TARGET_DIR)/$(DHCP_SERVER_TARGET_BINARY)
 	$(INSTALL) -m 0755 -D package/dhcp/init-server $(TARGET_DIR)/etc/init.d/S80dhcp-server
 	$(INSTALL) -m 0644 -D package/dhcp/dhcpd.conf $(TARGET_DIR)/etc/dhcp/dhcpd.conf
 	$(INSTALL) -m 0644 -D package/dhcp/default-server $(TARGET_DIR)/etc/default/dhcp-server
@@ -55,7 +55,7 @@ $(TARGET_DIR)/$(DHCP_RELAY_TARGET_BINARY): $(DHCP_DIR)/$(DHCP_RELAY_BINARY)
 
 $(TARGET_DIR)/$(DHCP_CLIENT_TARGET_BINARY): $(DHCP_DIR)/$(DHCP_RELAY_BINARY)
 	(cd $(TARGET_DIR)/var/lib; ln -sf /tmp dhcp)
-	$(INSTALL) -s -m 0755 -D $(DHCP_DIR)/$(DHCP_CLIENT_BINARY) $(TARGET_DIR)/$(DHCP_CLIENT_TARGET_BINARY)
+	$(INSTALL) -m 0755 -D $(DHCP_DIR)/$(DHCP_CLIENT_BINARY) $(TARGET_DIR)/$(DHCP_CLIENT_TARGET_BINARY)
 	$(INSTALL) -m 0644 -D package/dhcp/dhclient.conf $(TARGET_DIR)/etc/dhcp/dhclient.conf
 	rm -rf $(TARGET_DIR)/share/locale $(TARGET_DIR)/usr/info \
 		$(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/doc