stage1:prepare-app: add support for mount points options
stage1:prepare-app: add support for mount points options

We want to set some flags and options when mounting points, like the
MS_REC for procfs and sysfs.

Later we may convert all the other mount points to the same mount_table.

Signed-off-by: Djalal Harouni <03658647ea2d84f6ec35ce609567648903d0e1ba@endocode.com>

liubq919/rkt,dgonyeo/rkt,chrisseto/rkt,squaremo/rkt,ybubnov/rkt,jonboulle/rkt,matthaias/rkt,tmrts/rkt,sinfomicien/rkt,kbrwn/rkt,coreos/rkt,chrisseto/rkt,Wilybald/rkt,jzelinskie/rkt,intelsdi-x/rkt,luebken/rkt,lucasallan/rkt,yifan-gu/rkt,jjlakis/rkt,adfernandes/rkt,Yhgenomics/rkt,Yhgenomics/rkt,intelsdi-x/rkt,tmrts/rkt,marineam/rkt,endocode/rkt,yifan-gu/rkt,kbrwn/rkt,tv42/rkt,alexhersh/rkt,ChengTiesheng/rkt,joshix/rkt,luebken/rkt,rkt/rkt,kinvolk/rkt,squaremo/rkt,markllama/rkt,lee212/rkt,il9ue/rkt,ChengTiesheng/rkt,matthaias/rkt,mjg59/rkt,MattDees/rkt,s-urbaniak/rkt,jasonchaffee/rkt,shobhit85/rkt,Shashwatsh/rkt,liubq919/rkt,euank/rkt,kinvolk/rkt,monstermunchkin/rkt,mike1729/rkt,dalanlan/rkt,squeed/rkt,smarvin/rkt,alban/rkt,squeed/rkt,dalanlan/rkt,mjg59/rkt,rkt/rkt,s-urbaniak/rkt,sgotti/rkt,kinvolk/rkt,lee212/rkt,dalanlan/rkt,krnowak/rkt,krnowak/rkt,tv42/rkt,liubq919/rkt,sstabellini/rkt,sgotti/rkt,squeed/rkt,jonboulle/rkt,lucasallan/rkt,ybubnov/rkt,iaguis/rkt,nhlfr/rkt,iaguis/rkt,markllama/rkt,jasonchaffee/rkt,markllama/rkt,matthaias/rkt,cab105/rkt,coreos/rkt,jonboulle/rkt,akshaykarle/rkt,iaguis/rkt,joshix/rkt,sinfomicien/rkt,jakon89/rkt,luebken/rkt,liugenping/rkt,blixtra/rkt,dgonyeo/rkt,il9ue/rkt,jzelinskie/rkt,squaremo/rkt,tv42/rkt,linki/rkt,lucasallan/rkt,rkt/rkt,Wilybald/rkt,sstabellini/rkt,il9ue/rkt,alban/rkt,blixtra/rkt,joshix/rkt,blixtra/rkt,intfrr/rkt,Wilybald/rkt,akshaykarle/rkt,intfrr/rkt,intelsdi-x/rkt,iankronquist/rkt,akshaykarle/rkt,coreos/rkt,jjlakis/rkt,linki/rkt,MattDees/rkt,yifan-gu/rocket,endocode/rkt,lucasallan/rkt,cab105/rkt,mike1729/rkt,MattDees/rkt,achanda/rkt,iankronquist/rkt,euank/rkt,Yhgenomics/rkt,endocode/rkt,achanda/rkt,tmrts/rkt,alexhersh/rkt,jjlakis/rkt,mike1729/rkt,shobhit85/rkt,intfrr/rkt,achanda/rkt,marineam/rkt,rkt/rkt,alexhersh/rkt,s-urbaniak/rkt,adfernandes/rkt,ybubnov/rkt,chrisseto/rkt,kbrwn/rkt,Shashwatsh/rkt,mjg59/rkt,liugenping/rkt,alban/rkt,smarvin/rkt,yifan-gu/rkt,marineam/rkt,linki/rkt,shobhit85/rkt,Wilybald/rkt,krnowak/rkt,kinvolk/rkt,Shashwatsh/rkt,monstermunchkin/rkt,joshix/rkt,jzelinskie/rkt,yifan-gu/rocket,jasonchaffee/rkt,lee212/rkt,euank/rkt,iankronquist/rkt,sstabellini/rkt,dgonyeo/rkt,jakon89/rkt,sinfomicien/rkt,nhlfr/rkt,nhlfr/rkt,ChengTiesheng/rkt,sgotti/rkt,jakon89/rkt,monstermunchkin/rkt,liugenping/rkt,cab105/rkt,adfernandes/rkt,yifan-gu/rocket,smarvin/rkt