tests: ACE: fix compilation with appc/spec 0.8.0
tests: ACE: fix compilation with appc/spec 0.8.0

The fixes are necessary since the introduction of the following changes:
- https://github.com/appc/spec/pull/569

rkt/rkt,shobhit85/rkt,tmrts/rkt,akshaykarle/rkt,lucasallan/rkt,tmrts/rkt,jakon89/rkt,monstermunchkin/rkt,Shashwatsh/rkt,kinvolk/rkt,sgotti/rkt,jonboulle/rkt,mike1729/rkt,akshaykarle/rkt,joshix/rkt,kinvolk/rkt,jakon89/rkt,Shashwatsh/rkt,matthaias/rkt,shobhit85/rkt,kinvolk/rkt,sgotti/rkt,jjlakis/rkt,dgonyeo/rkt,dgonyeo/rkt,euank/rkt,cab105/rkt,Shashwatsh/rkt,intelsdi-x/rkt,intelsdi-x/rkt,lucasallan/rkt,jjlakis/rkt,Wilybald/rkt,coreos/rkt,joshix/rkt,shobhit85/rkt,squeed/rkt,rkt/rkt,mike1729/rkt,achanda/rkt,cab105/rkt,sstabellini/rkt,Wilybald/rkt,jonboulle/rkt,coreos/rkt,cab105/rkt,lucasallan/rkt,yifan-gu/rocket,lucasallan/rkt,coreos/rkt,matthaias/rkt,jakon89/rkt,nhlfr/rkt,Wilybald/rkt,s-urbaniak/rkt,mike1729/rkt,euank/rkt,yifan-gu/rkt,monstermunchkin/rkt,achanda/rkt,kinvolk/rkt,yifan-gu/rkt,alban/rkt,alban/rkt,dgonyeo/rkt,alban/rkt,intelsdi-x/rkt,joshix/rkt,sstabellini/rkt,rkt/rkt,squeed/rkt,yifan-gu/rocket,s-urbaniak/rkt,euank/rkt,jjlakis/rkt,Wilybald/rkt,joshix/rkt,sstabellini/rkt,nhlfr/rkt,ybubnov/rkt,achanda/rkt,rkt/rkt,nhlfr/rkt,yifan-gu/rkt,monstermunchkin/rkt,squeed/rkt,matthaias/rkt,jonboulle/rkt,ybubnov/rkt,s-urbaniak/rkt,tmrts/rkt,yifan-gu/rocket,sgotti/rkt,akshaykarle/rkt,ybubnov/rkt