Remove bluetooth vendor dependency

BUG: 13975473
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 9c7ba10..53d8b14 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -63,7 +63,7 @@
 BOARD_OVERRIDE_RS_CPU_VARIANT_64 := cortex-a57
 
 # Bluetooth
-BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR := vendor/htc/flounder
+BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR := device/htc/flounder/bluetooth
 BOARD_HAVE_BLUETOOTH_BCM := true
 
 BOARD_USES_GENERIC_AUDIO := false