usb: Add network bridge host driver for dun and rmnet

This host driver will be used to communicate with modem devices
with dial up network and RMNET interfaces. This driver works as
a bridge to pass control and data packets between the modem and
peripheral usb gadget driver. Driver currently supports
modem devices (vendor ID 0x05c6) with PIDs 0x9001

Change-Id: Id85b552b39d061528a1c3c90a354d73580c9b631
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index c5dcdbf..13828e0 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -283,27 +283,13 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called diag_bridge_test.  If unsure, choose N.
 
-config USB_QCOM_DUN_BRIDGE
-	tristate "USB Qualcomm modem DUN bridge driver"
+config USB_QCOM_MDM_BRIDGE
+	tristate "USB Qualcomm modem bridge driver for DUN and RMNET"
 	depends on USB
 	help
 	  Say Y here if you have a Qualcomm modem device connected via USB that
-	  will be bridged in kernel space. This driver will enable bridging
-	  with the gadget serial driver for use in dial-up networking. This is
-	  not the same as the qcserial driver that exposes a TTY interface to
-	  userspace.
-
+	  will be bridged in kernel space. This driver works as a bridge to pass
+	  control and data packets between the modem and peripheral usb gadget
+	  driver for dial up network and RMNET.
 	  To compile this driver as a module, choose M here: the module
-	  will be called dun_bridge.
-
-config USB_QCOM_DUN_BRIDGE_TEST
-	tristate "USB Qualcomm modem DUN bridge driver test"
-	depends on USB && USB_QCOM_DUN_BRIDGE && !USB_SERIAL_QUALCOMM
-	help
-	  Say Y here if you want to enable the test hook for the
-	  Qualcomm modem bridge driver. When enabled, this will create
-	  a debugfs file entry named "dun_bridge_test" which can be used
-	  to read and write directly to the modem.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called dun_bridge_test.
+	  will be called mdm_bridge. If unsure, choose N.