ANDROID: usb: phy: fix dual role sysfs build if kernel modules are supported

Add a missing ";" after EXPORT_SYMBOL() otherwise we run
into following build error if Kernel Modules are supported:
----------
  CC      drivers/usb/phy/class-dual-role.o
drivers/usb/phy/class-dual-role.c:91:1: error: expected ',' or ';' before 'int'
 int dual_role_get_property(struct dual_role_phy_instance *dual_role,
 ^
make[3]: *** [drivers/usb/phy/class-dual-role.o] Error 1
----------

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/drivers/usb/phy/class-dual-role.c b/drivers/usb/phy/class-dual-role.c
index ce889dd..51fcb54 100644
--- a/drivers/usb/phy/class-dual-role.c
+++ b/drivers/usb/phy/class-dual-role.c
@@ -86,7 +86,7 @@
 	pm_wakeup_event(&dual_role->dev, DUAL_ROLE_NOTIFICATION_TIMEOUT);
 	schedule_work(&dual_role->changed_work);
 }
-EXPORT_SYMBOL_GPL(dual_role_instance_changed)
+EXPORT_SYMBOL_GPL(dual_role_instance_changed);
 
 int dual_role_get_property(struct dual_role_phy_instance *dual_role,
 			   enum dual_role_property prop,