AA: packages: python: fix sqlite extension (#12239)

Backport of r33902.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@36503 3c298f89-4303-0410-b956-a3cf2f4a3e73