USB: Fix trout build failure with ci13xxx_msm gadget

This patch fixes the below compilation errors.

  CC      drivers/usb/gadget/ci13xxx_msm.o
  CC      net/mac80211/led.o
  drivers/usb/gadget/ci13xxx_msm.c: In function 'ci13xxx_msm_notify_event':
  drivers/usb/gadget/ci13xxx_msm.c:42: error: 'USB_AHBBURST' undeclared (first use in this function)
  drivers/usb/gadget/ci13xxx_msm.c:42: error: (Each undeclared identifier is reported only once
  drivers/usb/gadget/ci13xxx_msm.c:42: error: for each function it appears in.)
  drivers/usb/gadget/ci13xxx_msm.c:43: error: 'USB_AHBMODE' undeclared (first use in this function)
make[4]: *** [drivers/usb/gadget/ci13xxx_msm.o] Error 1
make[3]: *** [drivers/usb/gadget] Error 2

MSM USB driver is not supported on boards like trout (MSM7201) which
has an external PHY.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 9fb875d5f09c..9ffc8237fb4b 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -103,6 +103,8 @@ config USB_MSM_OTG_72K
           required after resetting the hardware and power management.
           This driver is required even for peripheral only or host only
           mode configurations.
+          This driver is not supported on boards like trout which
+          has an external PHY.
 
 config AB8500_USB
         tristate "AB8500 USB Transceiver Driver"