CLOUDSTACK-7517: loading ftp modules in VR

(cherry picked from commit b4f03a1339c67438a2a9cf94dd81b98cdfb458b9)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
debian: fix 4.3.2-snapshot deb build

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>