linux-yocto/5.15: fix buildpaths issue with pnmtologo

Integrating the following commit(s) to linux-yocto/5.15:

    a40d2daf2795 pnmtologo: use relocatable file name

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>