Ensure we can update the script base don the location of the udevd installation
(From OE-Core rev: 25ff5960e41b9d7c62b05a08dd77cf11390962a1)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>