hikey: Read UDC from /sys/class/udc/ at run time

Test: Manual
Bug: 33082418

Change-Id: I3fba73b6f2b8f844805f9901465a66adf4901fde
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/init.common.usb.rc b/init.common.usb.rc
index de54dbd..ff3d807 100644
--- a/init.common.usb.rc
+++ b/init.common.usb.rc
@@ -24,7 +24,6 @@
     symlink /config/usb_gadget/g1/configs/b.1 /config/usb_gadget/g1/os_desc/b.1
     mount functionfs adb /dev/usb-ffs/adb uid=2000,gid=2000
     setprop sys.usb.configfs 1
-    setprop sys.usb.controller "f72c0000.usb"
 
 on property:sys.usb.config=none && property:sys.usb.configfs=1
     write /config/usb_gadget/g1/os_desc/use 0