quincy: Fix interface name for BT tether

Change-Id: I06f4adcbcb7bab39a73d45d2086015b4872672b5
Merge branch 'cm-10.2' of https://github.com/CyanogenMod/android_device_samsung_quincy-common into cm-10.2

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml