cpu: Add support for ARM family

In order to detect the ARM family, the Processor Family (Offset 06h)
must contain the value of 0xFE. Then the family is located in
Processor Family 2 (Offset 28h) according to SMBIOS Spec. 3.0.0
and later.

The following ARM families have been added to the family list to
follow SMBIOS Spec. 3.1.1 and later.
 - ARMv7
 - ARMv8
 - ARM
 - StrongARM

Tested:
 - With ARM CPUs, both dbus and Redfish presented the processor's
   family from SMBIOS.

Signed-off-by: Charles Boyer <Charles.Boyer@fii-usa.com>
Change-Id: I21b80f34bfe76a2a2b6d78ee7aace54ded6abec4
2 files changed