Currently, when using `iasl` 20140926-32 [Oct 1 2014] from Debian 8 (Jessie/stable), the build of the Lenovo X60 fails due to syntax errors. ASL 2.0 supports `<<`. For consistency, right now, coreboot still uses the old syntax. So use `ShiftLeft` instead, which also fixes the build issue with older ASL compilers. Change-Id: Id7e309c31612387da3920cf7d846b358ac2bdc71 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: https://review.coreboot.org/18520 Tested-by: build bot (Jenkins) Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Nico Huber <nico.h@gmx.de>