libbt-hci: include bdroid_buildcfg.h from device repo

This lets device repos override some constants with their bdroid_buildcfg.h if
necessary.

This fixes Bluetooth issues (namely tethering) on endeavoru where
BTHC_USERIAL_READ_MEM_SIZE needs to be set to a higher value.

Change-Id: I8955963cdb2b34f1ba63f8160861699f7284814f

hci/Android.mk

@@ -2,6 +2,8 @@ LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
 
+LOCAL_CFLAGS += $(bdroid_CFLAGS)
+
 LOCAL_SRC_FILES := \
         src/bt_hci_bdroid.c \
         src/lpm.c \
@@ -11,7 +13,7 @@ LOCAL_SRC_FILES := \
 
 ifeq ($(BLUETOOTH_HCI_USE_MCT),true)
 
-LOCAL_CFLAGS := -DHCI_USE_MCT
+LOCAL_CFLAGS += -DHCI_USE_MCT
 
 LOCAL_SRC_FILES += \
         src/hci_mct.c \
@@ -27,7 +29,8 @@ endif
 
 LOCAL_C_INCLUDES += \
         $(LOCAL_PATH)/include \
-        $(LOCAL_PATH)/../utils/include
+        $(LOCAL_PATH)/../utils/include \
+        $(bdroid_C_INCLUDES)
 
 LOCAL_SHARED_LIBRARIES := \
         libcutils \

hci/include/bt_hci_bdroid.h

@@ -32,6 +32,11 @@
 
 #include "bt_hci_lib.h"
 
+#ifdef HAS_BDROID_BUILDCFG
+#include "bdroid_buildcfg.h"
+#endif
+
+
 /******************************************************************************
 **  Constants & Macros
 ******************************************************************************/