phy: Add support for phy-da8xx-usb

In preparation for supporting the musb driver, this patch
adds support for the usb phy associated with the musb driver.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 957efb3..8209ca7 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -84,6 +84,12 @@
 	help
 	  Support for the Broadcom MIPS BCM6368 USBH PHY.
 
+config PHY_DA8XX_USB
+	tristate "TI DA8xx USB PHY Driver"
+	depends on PHY && ARCH_DAVINCI
+	help
+	  Enable this to support the USB PHY on DA8xx SoCs.
+
 config PIPE3_PHY
 	bool "Support omap's PIPE3 PHY"
 	depends on PHY && ARCH_OMAP2PLUS