Connectivity: Fixes for tethering.

-Pass network info along with CMD_UPSTREAM_CHANGED
-Handle IllegalStateException on add/remove upstream v6 i/f
-Handle all exceptions when adding/removing upstream v6 interface.

Change-Id: Ic172c3479f78b3df54efc97a16a29ef63f94745e
CRs-Fixed: 347185, 355985
HID: Avoid listing HID mouse as paired device.

This patch avoids listing HID mouse as paired device at BT
turn ON in case device creation is completed and HID mouse
is not paired. The pairstate value is read from
getUpdatedRemoteDeviceProperty which correctly populates
the updated state for HID mouse.

Change-Id: I9cb0d9476e42139ed174400c45a4e19635b45d31