UPSTREAM: arm64: dmi: Add SMBIOS/DMI support

SMBIOS is important for server hardware vendors. It implements a spec for
providing descriptive information about the platform. Things like serial
numbers, physical layout of the ports, build configuration data, and the like.

Signed-off-by: Yi Li <yi.li@linaro.org>
Tested-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

(cherry picked from commit d1ae8c0057921681ca489bba7efbfacbb60d0f28)
Signed-off-by: Tomasz Figa <tfiga@chromium.org>

Bug: 24475017

Change-Id: Ia4495a2335bab1b5e626a6bcd5df4ab1d287a27d
Signed-off-by: Kees Cook <keescook@google.com>