bullhead: Add libbt-vendor in device.mk
am: 1b1931455d

Change-Id: Iafc566764136c389287e1838f8f9ed5d2f0f6a60
diff --git a/device.mk b/device.mk
index 4752123..18ac6a6 100644
--- a/device.mk
+++ b/device.mk
@@ -442,6 +442,7 @@
 
 # Bluetooth HAL
 PRODUCT_PACKAGES += \
+    libbt-vendor \
     android.hardware.bluetooth@1.0-impl
 
 # limit dex2oat threads to improve thermals