arc: bluetooth: Use UUID 16 bits in advertising data

arc: bluetooth: Use UUID 16 bits in advertising data

For device advertising data received from low energy scan,
Android framework supports UUID 128 bits in services data
field. But, Android Bluetooth package supports only UUID
16 bits.

This patch makes Chrome send UUID 16 bits to Android
instead of UUID 128 bits.

BUG=636478
TEST=Build

Review-Url: https://codereview.chromium.org/2204263003
Cr-Commit-Position: refs/heads/master@{#412417}
(cherry picked from commit 31fcf11302a5dc9670458fe666f86c086191089d)

[rkc, 2016-08-23 02:06:40]

Committed patchset #1 (id:1) to pending queue manually as
80cb1c7f1640486cb12397ad2ac1f5e95f3a8bd1.