Bluetooth: To enable IRK offload feature for WL connections

This patch enables the offload feature whenever connection is
initiated to the whitelist based on whether any device in WL
is also in the IRK list.

CRs-Fixed: 731211
Change-Id: I3298063405130be43a9165054b64c1c6dfd2d968
Conflicts:
stack/btm/btm_ble.c
4 files changed