i2c/isp1301_omap: Build fix

Build fix to the isp1301_omap driver ... this driver gets built
more often in the OMAP tree than in mainline, partly because the
defconfig for H2 (plus probably H3 and H4) needs updating.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

drivers/i2c/chips/isp1301_omap.c

@@ -26,7 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/usb/ch9.h>
-#include <linux/usb_gadget.h>
+#include <linux/usb/gadget.h>
 #include <linux/usb.h>
 #include <linux/usb/otg.h>
 #include <linux/i2c.h>