In a stateless image, /etc is not a good place for the "build"
file. By definining the location with a variable it becomes possible
to have the file created elsewhere on a per-image basis. The default
is the same as before.
(From OE-Core rev: 6750ea8160edccb156cb2ab68548adfc1c789895)
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>