Fix regression in Python build on 64 bits system

Commit 009d8fce introduced
--enable-shared --disable-static options for the host autotools packages,
ultimately causing a regression on the host-python build, leading to
a number of critical modules not being built on the target python on
64 bits system. Introduce a quick fix for the release and before a deeper
fix.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>