Use acpi_update_checksum() for updating ACPI table header checksum.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>

We should have a single place where we write the default value to the
creator revision field. If we ever will have any table created by another
tool, we can overwrite the value afterwards.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

The fields Creator ID and Creator Revision contain information about the
tool that created an ACPI table. This may be the ASL compiler for some
tables but it is not for others. Naming these fields aslc_id and
aslc_revision is misleading.

It is usual to see diverse values of Creator ID. On a laptop I saw these:
'AMD ', 'INTL, 'MSFT', 'PTEC'. Obviously not all relate to the Intel
ASL compiler.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

After some header file cleanups to add missing include files, remove
common.h from all files in the lib directory. This primarily means just
dropping the line but in a few cases we need to add in other header
files now.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

* Converting to void * is superfluous when calling memset().
* acpi_fill_header() already fills oem_table_id.

Fixes: d953137526cc ("x86: Move SSDT table to a writer function")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Move this table over to use a writer function, moving the code from the
x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>