Add a soc-family.inc file that can be included in a machine.conf to enable
the use of SOC_FAMILY in MACHINEOVERRIDE, which could be useful to group
multiple machines with the same common base. Some examples can be seen in
meta-ti BSP layer.
(From OE-Core rev: 641cdbc7ee0186053dd541e0dd5fb7b03b1c10d1)
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>