platform: fix OSGI JDBC configuration prefix
platform: fix OSGI JDBC configuration prefix

The prefix changed a while back from org.killbill.billing.osgi.jdbc
to org.killbill.billing.osgi.dao.

This fixes https://github.com/killbill/killbill-docs/issues/6.

Signed-off-by: Pierre-Alexandre Meyer <ff019a5748a52b5641624af88a54a2f0e46a9fb5@mouraf.org>

killbill/killbill-docs,killbill/killbill-docs