Bluetooth: update rtk_btusb driver to v 4.1.2

Change-Id: I3627b1938c734cfe4ce32c269798037dc1ff8a32
Signed-off-by: huweiguo <[email protected]>

Author: huweiguo

drivers/bluetooth/Kconfig

@@ -18,6 +18,12 @@ config BT_QCA
 	tristate
 	select FW_LOADER
 
+config BT_RTKBTUSB
+	tristate "RTK HCI USB driver"
+	depends on USB
+	help
+	  RTK Bluetooth HCI USB driver
+
 config BT_HCIBTUSB
 	tristate "HCI USB driver"
 	depends on USB

drivers/bluetooth/Makefile

@@ -13,6 +13,7 @@ obj-$(CONFIG_BT_HCIBLUECARD)	+= bluecard_cs.o
 obj-$(CONFIG_BT_HCIBTUART)	+= btuart_cs.o
 
 obj-$(CONFIG_BT_HCIBTUSB)	+= btusb.o
+obj-$(CONFIG_BT_RTKBTUSB)	+= rtk_btusb.o
 obj-$(CONFIG_BT_HCIBTSDIO)	+= btsdio.o
 
 obj-$(CONFIG_BT_INTEL)		+= btintel.o