Besides checking DISTRO_FEATURES for required or conflicting features,
being able to check MACHINE_FEATURES and/or COMBINED_FEATURES may also
be useful at times.
Temporarily support the old class name with a warning about future
deprecation.
(From OE-Core rev: 5f4875b950ce199e91f99c8e945a0c709166dc14)
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>