Add libboringssl.so to sources when copying remoting_user_session

Change-Id: I1a12c5d90da11d43774a1306fa2459b30685badb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1609596
Auto-Submit: Jamie Walch <jamiewalch@chromium.org>
Reviewed-by: Lambros Lambrou <lambroslambrou@chromium.org>
Commit-Queue: Lambros Lambrou <lambroslambrou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659573}

remoting/host/linux/BUILD.gn

@@ -60,7 +60,10 @@ if (enable_me2me_host) {
       ":remoting_user_session",
     ]
     if (is_component_build) {
-      sources += [ "$root_build_dir/libbase.so" ]
+      sources += [
+        "$root_build_dir/libbase.so",
+        "$root_build_dir/libboringssl.so",
+      ]
       deps += [ "//base:base" ]
       if (use_custom_libcxx) {
         sources += [ "$root_build_dir/libc++.so" ]