af-binder: Bug fixes

af-binder: Bug fixes

* fix a bug in handling of event loop that consummed
  100% CPU and reached assertion failures

* fix a file descriptor leak in handling API sockets
  on server side

* ensure non interleaved log messages

* fix lack of 'noconcurrency' flag in creation of
  dynamic apis

Also allows javascript client to set their "callId"
explicitely.

Change-Id: I28b4f9c2543e3d184b55fc63e0a1c46752450be3
Signed-off-by: José Bollo <jose.bollo@iot.bzh>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/11677
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>