buildroot

sphinxbase: new package

CMUSphinx toolkit is a speech recognition toolkit with various tools
used to build speech applications. CMU Sphinx toolkit has a number of
packages for different tasks and applications. The toolkit is designed
for use on mobile platforms.

Signed-off-by: Jonathan Ben-Avraham <yba@tkos.co.il>
[Thomas:
 - license is BSD-2c, not MIT
 - add --without-lapack]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>