afc: Add missing break statements
afc: Add missing break statements

Found by Coverity Scan analysis

halfline/gvfs,gicmo/gvfs,cpatulea/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,xkahn/gvfs-cmis,xkahn/gvfs-cmis,gicmo/gvfs,halfline/gvfs,philipl/gvfs,halfline/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,cpatulea/gvfs,philipl/gvfs,philipl/gvfs