juniper: Support 'username' form input type
juniper: Support 'username' form input type

https://bugzilla.redhat.com/show_bug.cgi?id=1412021

Signed-off-by: François Grenier <5187da0b934cc25eb2201a3ec9206c24b13cb23b@pacof.net>
Signed-off-by: David Woodhouse <97b3379caa91f4ee97e44013ae4dc6350540fa9d@infradead.org>

cernekee/openconnect,brandt/openconnect,brandt/openconnect,cernekee/openconnect,cernekee/openconnect,cernekee/openconnect,brandt/openconnect,mtmiller/openconnect,mtmiller/openconnect,mtmiller/openconnect,brandt/openconnect,mtmiller/openconnect