Change GATT_FAILURE from 0 to 0x101

GATT_FAILURE 0 clashes with GATT_SUCCESS. For now, they represent different
kind of faiure. One for Gatt operation, one for Gatt registration. But we
should separate them as good practice.
bug 9109238

Change-Id: I360467738b1e840aa6af18e017af3b0f5041b18b
1 file changed