If the file is expected to exist, then we should always be using require
so that if it doesn't we get an error rather than some other more
obscure failure later on.
(From OE-Core rev: 603ae6eb487489e65da69c68e532cb767ccc1fc2)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>