Handle both 32bit and 64bit systems, i.e. sandbox and sandbox64 the same way drivers/cpu/cpu_sandbox.c sets those ACPI tables up. This fixes "$ ./u-boot -Tc 'ut dm dm_test_acpi_write_tables'" test failure on sandbox64. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Simon Glass <sjg@chromium.org>