ci-build.sh: Avoid staging images twice & add .dtd/iso
ci-build.sh: Avoid staging images twice & add .dtd/iso

The pattern matching would seem to stage image files twice. Device tree
and some .iso now also moved to staging/images directory.  With this
change, the entire images directory will typically be moved into staging.

The final line that moves such files from staging/ into staging/images
might be superfluous but I'll defer additional cleanup for now.

Signed-off-by: Gunnar Andersson <df6c1dc70ee3404c16d7de0a5a8d978b44fa18d4@genivi.org>

gunnarx/genivi-dev-platform,chbae/genivi-dev-platform,chbae/genivi-dev-platform,GENIVI/genivi-dev-platform,DunderRoffe/genivi-dev-platform,GENIVI/genivi-dev-platform,DunderRoffe/genivi-dev-platform,gunnarx/genivi-dev-platform,gunnarx/genivi-dev-platform,DunderRoffe/genivi-dev-platform,chbae/genivi-dev-platform,GENIVI/genivi-dev-platform,chbae/genivi-dev-platform,gunnarx/genivi-dev-platform,DunderRoffe/genivi-dev-platform,DunderRoffe/genivi-dev-platform,GENIVI/genivi-dev-platform