Set TCP NODELAY sockopt to GSUP cli and srv connections

GSUP is message based on top of IPA, and hence TCP. We don't want to
have Nagle algorithm enabled, since we are interested in having messages
sent as quickly as possible and there's no need for lower layers to wait
for more data (because we send all the message data at once).

Related: OS#4499
Change-Id: I4653b95ef0d4e1184f81f28408e9eb5d665206ec
2 files changed