Fix archival and test result steps for corefx tests
Fix archival and test result steps for corefx tests

These archival and testResult groovy calls were using absolute paths, which is
apparently incorrect.  Change then to use relative paths and make things
consistent between Windodws and Ubuntu runs.

yizhang82/coreclr,cmckinsey/coreclr,dpodder/coreclr,wateret/coreclr,YongseopKim/coreclr,cydhaselton/coreclr,ragmani/coreclr,russellhadley/coreclr,qiudesong/coreclr,alexperovich/coreclr,botaberg/coreclr,krk/coreclr,cshung/coreclr,kyulee1/coreclr,mskvortsov/coreclr,wtgodbe/coreclr,rartemev/coreclr,mskvortsov/coreclr,AlexGhiondea/coreclr,pgavlin/coreclr,pgavlin/coreclr,ragmani/coreclr,pgavlin/coreclr,kyulee1/coreclr,mskvortsov/coreclr,hseok-oh/coreclr,wateret/coreclr,sagood/coreclr,sagood/coreclr,mmitche/coreclr,ragmani/coreclr,wtgodbe/coreclr,cydhaselton/coreclr,dpodder/coreclr,dpodder/coreclr,rartemev/coreclr,tijoytom/coreclr,neurospeech/coreclr,dpodder/coreclr,ragmani/coreclr,YongseopKim/coreclr,krk/coreclr,cshung/coreclr,russellhadley/coreclr,parjong/coreclr,ragmani/coreclr,botaberg/coreclr,qiudesong/coreclr,rartemev/coreclr,gkhanna79/coreclr,tijoytom/coreclr,sagood/coreclr,sjsinju/coreclr,James-Ko/coreclr,AlexGhiondea/coreclr,YongseopKim/coreclr,sjsinju/coreclr,AlexGhiondea/coreclr,hseok-oh/coreclr,gkhanna79/coreclr,hseok-oh/coreclr,parjong/coreclr,krk/coreclr,gkhanna79/coreclr,alexperovich/coreclr,yeaicc/coreclr,neurospeech/coreclr,wtgodbe/coreclr,krytarowski/coreclr,jamesqo/coreclr,ruben-ayrapetyan/coreclr,russellhadley/coreclr,James-Ko/coreclr,neurospeech/coreclr,YongseopKim/coreclr,krytarowski/coreclr,yeaicc/coreclr,mmitche/coreclr,James-Ko/coreclr,mskvortsov/coreclr,JonHanna/coreclr,James-Ko/coreclr,kyulee1/coreclr,yizhang82/coreclr,krytarowski/coreclr,ruben-ayrapetyan/coreclr,cmckinsey/coreclr,krk/coreclr,YongseopKim/coreclr,parjong/coreclr,AlexGhiondea/coreclr,pgavlin/coreclr,AlexGhiondea/coreclr,sjsinju/coreclr,hseok-oh/coreclr,russellhadley/coreclr,JosephTremoulet/coreclr,kyulee1/coreclr,jamesqo/coreclr,JonHanna/coreclr,yizhang82/coreclr,kyulee1/coreclr,mmitche/coreclr,sagood/coreclr,ragmani/coreclr,botaberg/coreclr,krytarowski/coreclr,mskvortsov/coreclr,tijoytom/coreclr,pgavlin/coreclr,ruben-ayrapetyan/coreclr,qiudesong/coreclr,sjsinju/coreclr,gkhanna79/coreclr,qiudesong/coreclr,yizhang82/coreclr,hseok-oh/coreclr,tijoytom/coreclr,wtgodbe/coreclr,JonHanna/coreclr,cmckinsey/coreclr,tijoytom/coreclr,poizan42/coreclr,krk/coreclr,poizan42/coreclr,cmckinsey/coreclr,poizan42/coreclr,cydhaselton/coreclr,ruben-ayrapetyan/coreclr,JosephTremoulet/coreclr,cshung/coreclr,wateret/coreclr,russellhadley/coreclr,wtgodbe/coreclr,botaberg/coreclr,botaberg/coreclr,wateret/coreclr,jamesqo/coreclr,cshung/coreclr,yeaicc/coreclr,poizan42/coreclr,kyulee1/coreclr,cydhaselton/coreclr,hseok-oh/coreclr,cshung/coreclr,JonHanna/coreclr,yizhang82/coreclr,krk/coreclr,mmitche/coreclr,ruben-ayrapetyan/coreclr,jamesqo/coreclr,sagood/coreclr,wateret/coreclr,alexperovich/coreclr,neurospeech/coreclr,qiudesong/coreclr,alexperovich/coreclr,ruben-ayrapetyan/coreclr,James-Ko/coreclr,cmckinsey/coreclr,cydhaselton/coreclr,jamesqo/coreclr,YongseopKim/coreclr,mskvortsov/coreclr,James-Ko/coreclr,neurospeech/coreclr,yeaicc/coreclr,AlexGhiondea/coreclr,poizan42/coreclr,tijoytom/coreclr,wtgodbe/coreclr,pgavlin/coreclr,russellhadley/coreclr,JonHanna/coreclr,JonHanna/coreclr,neurospeech/coreclr,rartemev/coreclr,sjsinju/coreclr,jamesqo/coreclr,cydhaselton/coreclr,alexperovich/coreclr,yizhang82/coreclr,rartemev/coreclr,cshung/coreclr,cmckinsey/coreclr,gkhanna79/coreclr,dpodder/coreclr,krytarowski/coreclr,yeaicc/coreclr,poizan42/coreclr,yeaicc/coreclr,rartemev/coreclr,wateret/coreclr,JosephTremoulet/coreclr,yeaicc/coreclr,JosephTremoulet/coreclr,sagood/coreclr,botaberg/coreclr,parjong/coreclr,alexperovich/coreclr,gkhanna79/coreclr,dpodder/coreclr,parjong/coreclr,parjong/coreclr,sjsinju/coreclr,qiudesong/coreclr,JosephTremoulet/coreclr,JosephTremoulet/coreclr,cmckinsey/coreclr,krytarowski/coreclr,mmitche/coreclr,mmitche/coreclr