Bluetooth: Enable macro to skip conn update at conn complete

The patch enables the macro in order to skip the connection
param update at the conn complete event since it interferes
with the link encryption

Change-Id: I344bf70814919caf95bc359a5155564b1b14b978
CRs-Fixed: 585765
Bluetooth: Enable config to skip read remote device features

This avoids sending read remote device features which cause encryption
failure with few remote devices.

CRs-Fixed: 590293
Change-Id: I8b5fd9f1dda1fa11b74953825a3ccbdc0e709511