liblp: Allow building liblp as a shared library.

Bug: 79173901
Test: system image, partition_tools both build
Change-Id: I70f45d4cebfbddc39d03aa3fb3a56b6c48a20d7e
diff --git a/init/Android.mk b/init/Android.mk
index a81a0f6..d0cb820 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -67,6 +67,7 @@
     libprotobuf-cpp-lite \
     libpropertyinfoserializer \
     libpropertyinfoparser \
+    liblp \
 
 shared_libs := \
     libcutils \