fbset: the package doesn't use autotools at all

fbset: the package doesn't use autotools at all

Previous attempt at fixing it (3649e6b52f0fad88847fb9d4780c02249b147f5f) was
to replace inherit autotools with autotools-brokensep. But since the package
doesn't use autotools at all, there's no need to inherit either of those
classes.

(From meta-openembedded rev: 162a0867b6f80492e95ddcac8779e2ac91d452a5)

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>