[login] Added missing service in google_auth_provider.cmx

Fixes https://fuchsia.atlassian.net/browse/SY-953

Test: Locally. Can now login.
Change-Id: Ieee3b2b19c1b1a73b24eb552ad027afe64e03535
diff --git a/auth_providers/google/meta/google_auth_provider.cmx b/auth_providers/google/meta/google_auth_provider.cmx
index b0c577f..9bd65cf 100644
--- a/auth_providers/google/meta/google_auth_provider.cmx
+++ b/auth_providers/google/meta/google_auth_provider.cmx
@@ -7,6 +7,7 @@
             "chromium.web.ContextProvider",
             "fuchsia.fonts.Provider",
             "fuchsia.media.Audio",
+            "fuchsia.net.LegacySocketProvider",
             "fuchsia.net.SocketProvider",
             "fuchsia.net.oldhttp.HttpService",
             "fuchsia.netstack.Netstack",