When building the toolchain under BSDs, this missing backslash is
needed.
Change-Id: I40b0adaa73b241713493fd74f24c93f85e7aabbe
Signed-off-by: Martin Roth <martinr@coreboot.org>
Reviewed-on: https://review.coreboot.org/28362
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
b7c0b8c8ee