python3: Add recommended modules to nativesdk install

python3: Add recommended modules to nativesdk install

The python3 installation in the SDK did not include the minimum set
of modules to be functional, particularly in the case where Python
is brought in through dependencies. Rather than requiring the user
to explicitly add the modules, it's better to pull in the modules
through RRECOMMENDS. Note that the Python 2 recipe already does
this.

(From OE-Core rev: 5a88e59e488248b7ec53b072f934052b96c78a51)

Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>