crossgcc: fix compilation of acpica

Compilation of acpica-20120420 is broken (and old, but I'll take care
of that in a future patch),
let's fix that ("Building IASL 20120420 ... failed").

Change-Id: If5fd5cd93d748f78b7c059323f9f810666e32cc7
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/1607
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
2 files changed