env: net: U_BOOT_ENV_CALLBACKs should not depend on CMD_NET

Some environment variables are relevant for networking. For these
U_BOOT_ENV_CALLBACKs have been defined. When the corresponding environment
variable is updated the callback updates the state of the network
sub-system.

In the UEFI subsystem we can use the network even if CONFIG_CMD_NET is not
defined.

Let the usage of the U_BOOT_ENV_CALLBACKs depend on CONFIG_NET and not on
CONFIG_CMD_NET.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/include/env_callback.h b/include/env_callback.h
index 982c078..74da20e 100644
--- a/include/env_callback.h
+++ b/include/env_callback.h
@@ -42,7 +42,7 @@
 #define DNS_CALLBACK
 #endif
 
-#ifdef CONFIG_CMD_NET
+#ifdef CONFIG_NET
 #define NET_CALLBACKS \
 	"bootfile:bootfile," \
 	"ipaddr:ipaddr," \
diff --git a/include/env_flags.h b/include/env_flags.h
index e5380f2..725841a 100644
--- a/include/env_flags.h
+++ b/include/env_flags.h
@@ -36,7 +36,7 @@
 #define CONFIG_ENV_FLAGS_LIST_STATIC ""
 #endif
 
-#ifdef CONFIG_CMD_NET
+#ifdef CONFIG_NET
 #ifdef CONFIG_REGEX
 #define ETHADDR_WILDCARD "\\d*"
 #else