Some .asl files include others using the iasl 'include' directive. This
needs to be able to find the files referenced.
For an out-of-tree build the source directory is not the current
directory. Moreover, U-Boot preprocesses the input file and puts the
result in the output directory. So iasl does not know where the real
source file came from.
Add a -I option to produce the correct behaviour. We could add an option
to not preprocess the .asl source, but for now that seems unnecessary.
Signed-off-by: Simon Glass <sjg@chromium.org>
a16f488239