sealed_storage: add libsealed_storage_wrapper.so

This CL adds shared library to the package.

BUG=b:129982188
TEST=emerge-${BOARD} sealed_storage;
     check that libsealed_storage_wrapper.so is generated.

Change-Id: Ide1b6b8f78327eb3661fa7ddfbfc2f1d680686c9
Reviewed-on: https://chromium-review.googlesource.com/1607156
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Andrey Pronin <apronin@chromium.org>
Tested-by: Yufeng Wang <yufengwang@google.com>
Reviewed-by: Andrey Pronin <apronin@chromium.org>
Reviewed-by: Yufeng Wang <yufengwang@google.com>
(cherry picked from commit 8d00bffdaf413d201f7685843413096e2c223583)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/1615377
Commit-Queue: Andrey Pronin <apronin@chromium.org>
diff --git a/sealed_storage/BUILD.gn b/sealed_storage/BUILD.gn
index 5262983..02211b2 100644
--- a/sealed_storage/BUILD.gn
+++ b/sealed_storage/BUILD.gn
@@ -8,6 +8,7 @@
   deps = [
     ":sealed_storage",
     ":sealed_storage_tool",
+    ":sealed_storage_wrapper",
   ]
   if (use.test) {
     deps += [ ":sealed_storage_testrunner" ]
@@ -61,6 +62,12 @@
   all_dependent_configs = [ ":sealed_storage_dependent_config" ]
 }
 
+shared_library("sealed_storage_wrapper") {
+  deps = [
+    ":sealed_storage",
+  ]
+}
+
 executable("sealed_storage_tool") {
   configs += [
     ":cli_defaults",