sunxi: ehci: Add proper Kconfig options to select the usb Vbus gpio-s

Add proper Kconfig options to select the usb Vbus gpio-s, besides moving to
Kconfig being the right thing to do, an added advantage of this is that it
allows for boards without Vbus gpio-s.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 5c3b932..b2beea0 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -197,4 +197,18 @@
 	slot or emmc on mmc1 - mmc3. Setting this to 1, 2 or 3 will enable
 	support for this.
 
+config USB1_VBUS_PIN
+	string "Vbus enable pin for usb1 (ehci0)"
+	default "PH6" if MACH_SUN4I || MACH_SUN7I
+	---help---
+	Set the Vbus enable pin for usb1 (ehci0, usb0 is the otg). This takes
+	a string in the format understood by sunxi_name_to_gpio, e.g.
+	PH1 for pin 1 of port H.
+
+config USB2_VBUS_PIN
+	string "Vbus enable pin for usb2 (ehci1)"
+	default "PH3" if MACH_SUN4I || MACH_SUN7I
+	---help---
+	See USB1_VBUS_PIN help text.
+
 endif