Add remoting/client to shipped_binaries

Trybot was not catching missing traffic annotations in remoting/client
since it's not pulled in by shipped_binaries. //remoting/client is used
by remoting Android and iOS clients, which we can't include in
shipped_binaries, so I directly include //remoting/client instead.

Change-Id: I5ad2a1e69fa2cbc57ca757ec748df002eb249ae9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1829650Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Yuwei Huang <yuweih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#701382}

BUILD.gn

@@ -815,6 +815,7 @@ if ((is_linux || is_win) && enable_remoting && !use_ozone) {
   group("shipped_binaries") {
     deps = [
       "//chrome:chrome",
+      "//remoting/client",
       "//remoting/host:host",
       "//tools/traffic_annotation/summary:annotations_xml",
     ]