Work around Yubikey/Android PBKDF2 bug
Work around Yubikey/Android PBKDF2 bug

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

mtmiller/openconnect,liiir1985/openconnect,mtmiller/openconnect,don-johnny/openconnect,brandt/openconnect,cernekee/openconnect,lins05/openconnect,matlockx/openconnect,mveplus/openconnect-client,mveplus/openconnect-client,matlockx/openconnect,cernekee/openconnect,matlockx/openconnect,brandt/openconnect,mtmiller/openconnect,liiir1985/openconnect,don-johnny/openconnect,lins05/openconnect,mveplus/openconnect-client,nmav/openconnect-mine,cernekee/openconnect,mtmiller/openconnect,atyndall/openconnect,lins05/openconnect,don-johnny/openconnect,liiir1985/openconnect,atyndall/openconnect,liiir1985/openconnect,brandt/openconnect,mveplus/openconnect-client,nmav/openconnect-mine,atyndall/openconnect,atyndall/openconnect,lins05/openconnect,matlockx/openconnect,nmav/openconnect-mine,don-johnny/openconnect,brandt/openconnect,nmav/openconnect-mine,cernekee/openconnect