ARM-CI: Create mount path if not already present
ARM-CI: Create mount path if not already present

* Previous PRs assumed that the mount path is already created on the CI machine
* This results in errors if the same is not true

Signed-off-by: Prajwal A N <b9045b1f56dab106e820d6cda13049bcd6c9e3af@samsung.com>

dpodder/coreclr,YongseopKim/coreclr,russellhadley/coreclr,cydhaselton/coreclr,dpodder/coreclr,dasMulli/coreclr,ragmani/coreclr,yeaicc/coreclr,alexperovich/coreclr,mmitche/coreclr,KrzysztofCwalina/coreclr,mskvortsov/coreclr,jhendrixMSFT/coreclr,YongseopKim/coreclr,dasMulli/coreclr,bartdesmet/coreclr,naamunds/coreclr,yeaicc/coreclr,tijoytom/coreclr,neurospeech/coreclr,naamunds/coreclr,poizan42/coreclr,mskvortsov/coreclr,krk/coreclr,yeaicc/coreclr,gkhanna79/coreclr,cmckinsey/coreclr,cshung/coreclr,botaberg/coreclr,dpodder/coreclr,poizan42/coreclr,qiudesong/coreclr,hseok-oh/coreclr,krk/coreclr,jamesqo/coreclr,qiudesong/coreclr,pgavlin/coreclr,dpodder/coreclr,ZhichengZhu/coreclr,James-Ko/coreclr,shahid-pk/coreclr,alexperovich/coreclr,ruben-ayrapetyan/coreclr,parjong/coreclr,roncain/coreclr,shahid-pk/coreclr,ZhichengZhu/coreclr,pgavlin/coreclr,cydhaselton/coreclr,josteink/coreclr,Dmitry-Me/coreclr,Dmitry-Me/coreclr,sagood/coreclr,pgavlin/coreclr,manu-silicon/coreclr,AlexGhiondea/coreclr,wtgodbe/coreclr,martinwoodward/coreclr,cmckinsey/coreclr,yizhang82/coreclr,ragmani/coreclr,russellhadley/coreclr,sjsinju/coreclr,dpodder/coreclr,wateret/coreclr,wateret/coreclr,kyulee1/coreclr,alexperovich/coreclr,wtgodbe/coreclr,krk/coreclr,martinwoodward/coreclr,ragmani/coreclr,YongseopKim/coreclr,cmckinsey/coreclr,ragmani/coreclr,manu-silicon/coreclr,wateret/coreclr,naamunds/coreclr,tijoytom/coreclr,cydhaselton/coreclr,ZhichengZhu/coreclr,JosephTremoulet/coreclr,ragmani/coreclr,kyulee1/coreclr,AlexGhiondea/coreclr,jhendrixMSFT/coreclr,tijoytom/coreclr,JosephTremoulet/coreclr,poizan42/coreclr,gkhanna79/coreclr,cydhaselton/coreclr,naamunds/coreclr,bartdesmet/coreclr,KrzysztofCwalina/coreclr,sagood/coreclr,JonHanna/coreclr,naamunds/coreclr,jhendrixMSFT/coreclr,YongseopKim/coreclr,rartemev/coreclr,jamesqo/coreclr,JonHanna/coreclr,ZhichengZhu/coreclr,roncain/coreclr,shahid-pk/coreclr,JonHanna/coreclr,neurospeech/coreclr,Dmitry-Me/coreclr,dasMulli/coreclr,josteink/coreclr,tijoytom/coreclr,mskvortsov/coreclr,ruben-ayrapetyan/coreclr,manu-silicon/coreclr,vinnyrom/coreclr,ruben-ayrapetyan/coreclr,mskvortsov/coreclr,vinnyrom/coreclr,josteink/coreclr,yeaicc/coreclr,KrzysztofCwalina/coreclr,josteink/coreclr,Dmitry-Me/coreclr,qiudesong/coreclr,ramarag/coreclr,mmitche/coreclr,hseok-oh/coreclr,ramarag/coreclr,ramarag/coreclr,yeaicc/coreclr,KrzysztofCwalina/coreclr,poizan42/coreclr,krytarowski/coreclr,ruben-ayrapetyan/coreclr,AlexGhiondea/coreclr,parjong/coreclr,rartemev/coreclr,manu-silicon/coreclr,cmckinsey/coreclr,JonHanna/coreclr,ruben-ayrapetyan/coreclr,hseok-oh/coreclr,JonHanna/coreclr,russellhadley/coreclr,bartdesmet/coreclr,sagood/coreclr,rartemev/coreclr,wateret/coreclr,qiudesong/coreclr,jhendrixMSFT/coreclr,yizhang82/coreclr,parjong/coreclr,krk/coreclr,jhendrixMSFT/coreclr,poizan42/coreclr,krytarowski/coreclr,manu-silicon/coreclr,JosephTremoulet/coreclr,JosephTremoulet/coreclr,kyulee1/coreclr,cshung/coreclr,martinwoodward/coreclr,botaberg/coreclr,cshung/coreclr,krytarowski/coreclr,Dmitry-Me/coreclr,pgavlin/coreclr,bartdesmet/coreclr,josteink/coreclr,roncain/coreclr,shahid-pk/coreclr,mmitche/coreclr,martinwoodward/coreclr,neurospeech/coreclr,botaberg/coreclr,josteink/coreclr,mskvortsov/coreclr,wateret/coreclr,dasMulli/coreclr,roncain/coreclr,JosephTremoulet/coreclr,bartdesmet/coreclr,kyulee1/coreclr,cmckinsey/coreclr,bartdesmet/coreclr,rartemev/coreclr,dasMulli/coreclr,hseok-oh/coreclr,sjsinju/coreclr,pgavlin/coreclr,manu-silicon/coreclr,russellhadley/coreclr,wtgodbe/coreclr,gkhanna79/coreclr,gkhanna79/coreclr,shahid-pk/coreclr,Dmitry-Me/coreclr,AlexGhiondea/coreclr,yeaicc/coreclr,naamunds/coreclr,roncain/coreclr,sagood/coreclr,wtgodbe/coreclr,yizhang82/coreclr,cydhaselton/coreclr,tijoytom/coreclr,YongseopKim/coreclr,ramarag/coreclr,neurospeech/coreclr,jamesqo/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,vinnyrom/coreclr,qiudesong/coreclr,yeaicc/coreclr,hseok-oh/coreclr,cshung/coreclr,cshung/coreclr,cydhaselton/coreclr,vinnyrom/coreclr,JonHanna/coreclr,shahid-pk/coreclr,sjsinju/coreclr,alexperovich/coreclr,jamesqo/coreclr,dpodder/coreclr,cmckinsey/coreclr,jhendrixMSFT/coreclr,ragmani/coreclr,martinwoodward/coreclr,KrzysztofCwalina/coreclr,YongseopKim/coreclr,parjong/coreclr,manu-silicon/coreclr,James-Ko/coreclr,ZhichengZhu/coreclr,sagood/coreclr,parjong/coreclr,botaberg/coreclr,ZhichengZhu/coreclr,krytarowski/coreclr,James-Ko/coreclr,James-Ko/coreclr,bartdesmet/coreclr,yizhang82/coreclr,ramarag/coreclr,krk/coreclr,wateret/coreclr,krytarowski/coreclr,wtgodbe/coreclr,yizhang82/coreclr,yizhang82/coreclr,sagood/coreclr,cmckinsey/coreclr,martinwoodward/coreclr,sjsinju/coreclr,kyulee1/coreclr,roncain/coreclr,dasMulli/coreclr,roncain/coreclr,parjong/coreclr,russellhadley/coreclr,mmitche/coreclr,Dmitry-Me/coreclr,jamesqo/coreclr,gkhanna79/coreclr,pgavlin/coreclr,josteink/coreclr,JosephTremoulet/coreclr,wtgodbe/coreclr,cshung/coreclr,hseok-oh/coreclr,gkhanna79/coreclr,qiudesong/coreclr,vinnyrom/coreclr,tijoytom/coreclr,naamunds/coreclr,AlexGhi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