Make paths used by ARM corefx test script absolute
Make paths used by ARM corefx test script absolute

yizhang82/coreclr,mmitche/coreclr,yizhang82/coreclr,mmitche/coreclr,krk/coreclr,krk/coreclr,mmitche/coreclr,poizan42/coreclr,yizhang82/coreclr,krk/coreclr,cshung/coreclr,yizhang82/coreclr,krk/coreclr,cshung/coreclr,mmitche/coreclr,wtgodbe/coreclr,cshung/coreclr,mmitche/coreclr,yizhang82/coreclr,cshung/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,wtgodbe/coreclr,krk/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,poizan42/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,poizan42/coreclr,ruben-ayrapetyan/coreclr,wtgodbe/coreclr,cshung/coreclr,krk/coreclr,mmitche/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,wtgodbe/coreclr,yizhang82/coreclr