This function is going to be used by ks parser to find include .wks
files. get_boot_config name is a bit confusing as function is quite
generic. It looks if file is present in the canned wks directories.
Renamed get_boot_config -> get_canned.
Renamed parameter file_boot -> file_name.
Updated description.
(From OE-Core rev: 8ea9a4c0422c9600cd33ec6e815ebcf2d0aad364)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>