ARM: am3517_evm: Fix pin muxing to enable EHCI Host in the future

This patch enables the pinmuxing to support gpio_57 for phy reset
and fixes the pinmuxing for the ECHI tranceiver.  The clocks
don't appear to by fully enabled yet, so OMAP-EHCI on am3517 is
still not yet working, but we're one step closer.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/include/configs/am3517_evm.h b/include/configs/am3517_evm.h
index e0521ab..2e84818 100644
--- a/include/configs/am3517_evm.h
+++ b/include/configs/am3517_evm.h
@@ -28,6 +28,8 @@
  * Enable CONFIG_USB_MUSB_GADGET for Device functionalities.
  */
 
+#define CONFIG_OMAP_EHCI_PHY1_RESET_GPIO	57
+
 #ifdef CONFIG_USB_MUSB_AM35X
 
 #ifdef CONFIG_USB_MUSB_HOST