acpi: Allocate and write ACPI tables

acpi: Allocate and write ACPI tables

Allocate memory for ACPI tables in generic acpi code. When ACPI wasn't
installed in other places, install the ACPI table using BLOBLISTs.

This allows non x86 platforms to boot using ACPI only in case the
EFI loader is being used, since EFI is necessary to advertise the location
of the ACPI tables in memory.

TEST: Booted QEMU SBSA (no QFW) using EFI and ACPI only.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>