nimble/controller: Fix extended connect
nimble/controller: Fix extended connect

With this patch we make sure that LE Enhanced Connection complete event
is sent to host after controller receives AUX_CONNECT_RSP

X-Original-Commit: 60632db3189078499a8b049ba715b04d7f3635f5

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble