Fixing regression in Windows Host Package GN target

A recent GN change (https://codereview.chromium.org/2308813002) broke the
target used for building our signed package as it removed one of the binaries.

This change adds the binary back so we can resume getting signed MSIs.

BUG=

Review-Url: https://codereview.chromium.org/2350813002
Cr-Commit-Position: refs/heads/master@{#419493}

remoting/host/installer/win/BUILD.gn

@@ -51,6 +51,7 @@ action("remoting_me2me_host_archive") {
   # addressed.
   inputs = [
     "$root_out_dir/remote_assistance_host.exe",
+    "$root_out_dir/remote_assistance_host_uiaccess.exe",
     "$root_out_dir/remote_security_key.exe",
     "$root_out_dir/remoting_core.dll",
     "$root_out_dir/remoting_desktop.exe",
@@ -70,6 +71,7 @@ action("remoting_me2me_host_archive") {
   # _generated_files, otherwise the Windows MSI will not be built correctly.
   _generated_dst_files = [
     "files/remote_assistance_host.exe",
+    "files/remote_assistance_host_uiaccess.exe",
     "files/remote_security_key.exe",
     "files/remoting_core.dll",
     "files/remoting_desktop.exe",