efi_selftest: test EFI_DEVICE_PATH_UTILITIES_PROTOCOL

Provide unit tests for the EFI_DEVICE_PATH_UTILITIES_PROTOCOL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index 31b444f..0e4980c 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -18,6 +18,7 @@
 efi_selftest_controllers.o \
 efi_selftest_console.o \
 efi_selftest_devicepath.o \
+efi_selftest_devicepath_util.o \
 efi_selftest_events.o \
 efi_selftest_event_groups.o \
 efi_selftest_exitbootservices.o \