net: make initr_net() invocation command line agnostic

initr_net() initalizes the network devices by calling eth_initalize().
There is no good reason to disable this if no command line interface is
present.

Let initr_net() depend on CONFIG_NET || CONFIG_NET_LWIP.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/common/board_r.c b/common/board_r.c
index 65d74e3..bc6fd64 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -509,7 +509,7 @@
 	return 0;
 }
 
-#if defined(CONFIG_CMD_NET)
+#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP)
 static int initr_net(void)
 {
 	puts("Net:   ");
@@ -779,7 +779,7 @@
 #if CONFIG_IS_ENABLED(PCI_ENDPOINT)
 	INITCALL(pci_ep_init);
 #endif
-#if CONFIG_IS_ENABLED(CMD_NET)
+#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP)
 	WATCHDOG_RESET();
 	INITCALL(initr_net);
 #endif