efi_loader: fill simple network protocol revision

Provide the simple network protocol revision.
This revision number could be used to identify backwards compatible
enhancements of the protocol.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/include/efi_api.h b/include/efi_api.h
index 8c227ce..2f31464 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -600,6 +600,9 @@
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
 
+/* revision of the simple network protocol */
+#define EFI_SIMPLE_NETWORK_PROTOCOL_REVISION	0x00010000
+
 struct efi_simple_network
 {
 	u64 revision;