Fix profile lockscreen override.

KeyStore.isEmpty() needs to be called under the system UID (as it needs
KeyStore's P_ZERO permission), otherwise it'll always return false.
Achieve that by moving the requireSecureKeyguard() implementation into
the DPM service.

Also take the opportunity to clean up the code a bit.

Change-Id: Ice648f2050f22ee5f27332f23a850f1e90befb94
National roaming info for Drei in Austria

3AT roams in T-Mobile AT networks

Change-Id: I915edccf92bcbb088fa25b958eb345c624f61597
Bluetooth: HID: Add support for HID Device Role

This patch adds the HID Device Role support in Bluetooth framework.
Also AIDL and callback related files for HID Device role are added
to provide interface for third party applications to communicate with
HID device Service.

Change-Id: Id03a362b7bcfa2e76056fa0197eaac12ce49b5a2
CRs-Fixed: 573086
OBEX: Reduce Obex MTU size for A2DP or SCO concurrency

Reduce Obex MTU to 8k from 64k when OPP send is tried with
SCO / A2DP streaming in progress, so that the continue
response for first complete Obex PUT packet is received
from SOC within 50 seconds time frame.

CRs-Fixed: 571865
Change-Id: I1eae114f57f2a92ee4b26c82d8f55fafe02775b8
Bluetooth: Changes for LPP and extended LE scan

This patch includes implementation of a new Bluetooth
Adapter named QBluetoothAdapter for implementing LE
specific tasks that the default adapter doesnt perform.
This patch also implements Low power proximity and extended
LE scan functionality based on service UUIDs.

CRs-Fixed: 581289
Change-Id: I63e0593f79c8929d4e18cee0472fcb401c8892e7
remove expanded desktop