abuild requires the `.xcompile` file to be present already before it runs any actual `make` builds that would generate it. Change-Id: Ib485e7741b7700fa241c192e60900ae5f1d977f5 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29483 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>