Kconfig: cmd: Make networking command dependent on NET

Enable networking command only when NET is enabled.
And remove selecting NET for CMD_NET

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/Kconfig b/Kconfig
index efd77f3..4354061 100644
--- a/Kconfig
+++ b/Kconfig
@@ -69,22 +69,22 @@
 	imply USE_BOOTCOMMAND
 	select CMD_BOOTZ if ARM && !ARM64
 	select CMD_BOOTI if ARM64
-	select CMD_DHCP if NET
-	select CMD_PXE if NET
+	select CMD_DHCP if NET && CMD_NET
+	select CMD_PXE if NET && CMD_NET
 	select CMD_EXT2
 	select CMD_EXT4
 	select CMD_FAT
 	select CMD_FS_GENERIC
-	select CMD_MII if NET
+	imply CMD_MII if NET
 	select CMD_PING if NET
 	select CMD_PART if PARTITIONS
 	select HUSH_PARSER
-	select BOOTP_BOOTPATH if NET
-	select BOOTP_DNS if NET
-	select BOOTP_GATEWAY if NET
-	select BOOTP_HOSTNAME if NET
-	select BOOTP_PXE if NET
-	select BOOTP_SUBNETMASK if NET
+	select BOOTP_BOOTPATH if NET && CMD_NET
+	select BOOTP_DNS if NET && CMD_NET
+	select BOOTP_GATEWAY if NET && CMD_NET
+	select BOOTP_HOSTNAME if NET && CMD_NET
+	select BOOTP_PXE if NET && CMD_NET
+	select BOOTP_SUBNETMASK if NET && CMD_NET
 	select CMDLINE_EDITING
 	select AUTO_COMPLETE
 	select SYS_LONGHELP