acinclude: Add vector defines to sparse.

acinclude: Add vector defines to sparse.

By adding compiler default flags for vector instructions to
cgcc we'll be able to check the same sources that we're building.
Also, this will allow to avoid re-defining these flags and
types specifically for "sparse" includes.

"sparse" headers "bmi2intrin.h" and "emmintrin.h" dropped as
not needed anymore.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Ben Pfaff <blp@ovn.org>