Add BCSP TXCRC option to drivers/bluetooth/Kconfig

drivers/bluetooth/Kconfig

@@ -57,6 +57,14 @@ config BT_HCIUART_BCSP
 
 	  Say Y here to compile support for HCI BCSP protocol.
 
+config BT_HCIUART_BCSP_TXCRC
+        bool "Transmit CRC with every BCSP packet"
+        depends on BT_HCIUART_BCSP
+        help
+	  If you say Y here, a 16-bit CRC checksum will be transmitted along with
+	  every BCSP (BlueCore Serial Protocol) packet sent to the Bluetooth chip.
+	  This increases reliability, but slightly reduces efficiency.
+
 config BT_HCIDTL1
 	tristate "HCI DTL1 (PC Card) driver"
 	depends on PCMCIA && BT