[devmgr-integration-test] Export the shared library

Test: Compiled

Change-Id: I9268b2212046c6fa54a9a8beca3629ac8818d593
diff --git a/system/ulib/devmgr-integration-test/rules.mk b/system/ulib/devmgr-integration-test/rules.mk
index 427db32..d7f8d01 100644
--- a/system/ulib/devmgr-integration-test/rules.mk
+++ b/system/ulib/devmgr-integration-test/rules.mk
@@ -27,5 +27,7 @@
 	system/ulib/zxcpp \
 
 MODULE_PACKAGE := shared
+MODULE_EXPORT := so
+MODULE_SO_NAME := devmgr-integration-test
 
 include make/module.mk