export libstatssocket_headers

Add export_header_lib_headers: ["libstatssocket_headers"]
to libstatspush_compat

Test: m
Change-Id: I70d7a214a5233c6a730b24c9c21b8bd654a78b04

libstats/push_compat/Android.bp

@@ -44,6 +44,9 @@ cc_library {
     name: "libstatspush_compat",
     defaults: ["libstatspush_compat_defaults"],
     export_include_dirs: ["include"],
+    export_header_lib_headers: [
+        "libstatssocket_headers",
+    ],
     static_libs: ["libgtest_prod"],
 }