Bug#949405: kannel: FTBFS with libxml2 2.9.10 (uses xml2-config)

[Hugh McMaster]

Control: tags -1 + patch fixed-upstream
Control: forwarded -1 https://redmine.kannel.org/issues/830

Patch applied upstream [1]

Hugh

[1] 
https://redmine.kannel.org/projects/kannel/repository/revisions/5326/diff/trunk/configure.in