[efi] rename header for managed network protocol

Change-Id: I4339ba62e05b0c7a22f9fca515b5f9f93b34b25a
diff --git a/include/mnp.h b/include/efi/protocol/managed-network.h
similarity index 100%
rename from include/mnp.h
rename to include/efi/protocol/managed-network.h