Revert "Kconfig: cmd: Make networking command dependent on NET"

This reverts the parts of commit 3b3ea2c56ec4bc5588281fd103c744e608f8b25c
where it changed the EFI dependency on NET.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>

Reviewed-by: Duncan Hare <dh@synoia.com>
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index d2ce897..55c97c0 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -22,5 +22,5 @@
 obj-$(CONFIG_LCD) += efi_gop.o
 obj-$(CONFIG_DM_VIDEO) += efi_gop.o
 obj-$(CONFIG_PARTITIONS) += efi_disk.o
-obj-$(CONFIG_CMD_NET) += efi_net.o
+obj-$(CONFIG_NET) += efi_net.o
 obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += efi_smbios.o