sunxi: ba10_tv_box_defconfig: Fix USB not working

PH12 is Vbus enable for Vbus2, not Vbus1.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NIan Campbell <ijc@hellion.org.uk>

configs/ba10_tv_box_defconfig

 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_EMAC,USB_EHCI"
 CONFIG_FDTFILE="sun4i-a10-ba10-tvbox.dtb"
-CONFIG_USB1_VBUS_PIN="PH12"
+CONFIG_USB2_VBUS_PIN="PH12"
 +S:CONFIG_ARM=y
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN4I=y