Bluetooth: bpa10x: Use separate h4_recv_buf helper

When adding the alignment and padding support for H:4 packet processing for the Nokia driver, it broke the h4_recv_buf usage within bpa10x driver. To fix this use a separate helper function and placing it into a dedicated h4_recv.h header file.

---
 drivers/bluetooth/Kconfig   |   3 +-
 drivers/bluetooth/bpa10x.c  |   2 +-
 drivers/bluetooth/h4_recv.h | 160 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 162 insertions(+), 3 deletions(-)
 create mode 100644 drivers/bluetooth/h4_recv.h

index d2abcb768ae8..de13c0e2bfc2 100644
@@ -243,8 +243,7 @@ config BT_HCIBCM203X
 
 config BT_HCIBPA10X
 	tristate "HCI BPA10x USB driver"
-	depends on USB && BT_HCIUART
-	select BT_HCIUART_H4
+	depends on USB
 	help
 	  Bluetooth HCI BPA10x USB driver.
 	  This driver provides support for the Digianswer BPA 100/105 Bluetooth

index 801ea4ca65e4..c6f7cc57db14 100644
@@ -35,7 +35,7 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
-#include "hci_uart.h"
+#include "h4_recv.h"
 
 #define VERSION "0.11"
 

2.14.3