libinit: depend on libselinux

libinit uses headers from libselinux, add a LOCAL_STATIC_LIBRARIES
dependency.

Change-Id: I6b0a3183058c8593ef40e58abbf2d72bcce59e95
diff --git a/init/Android.mk b/init/Android.mk
index d6cb4e5..66ce8a8 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -52,7 +52,7 @@
     service.cpp \
     util.cpp \
 
-LOCAL_STATIC_LIBRARIES := libbase
+LOCAL_STATIC_LIBRARIES := libbase libselinux
 LOCAL_MODULE := libinit
 LOCAL_SANITIZE := integer
 LOCAL_CLANG := true