clamav: Update source mirror
clamav: Update source mirror

The source archive was deleted from the debian mirror; get it from
launchpad for now

Signed-off-by: Ioan-Adrian Ratiu <7ec73abcfe099fc5574c01312b62768070c80980@ni.com>
Signed-off-by: Armin Kuster <525edcd226fb27e7f47fbb319a38fe989c677548@gmail.com>

edgeos/meta-security,akuster/meta-security,edgeos/meta-security,akuster/meta-security,akuster/meta-security,edgeos/meta-security,akuster/meta-security,edgeos/meta-security