configure: rename functions for reuse
configure: rename functions for reuse

kinvolk/rkt,squeed/rkt,squeed/rkt,jonboulle/rkt,lucasallan/rkt,rkt/rkt,ybubnov/rkt,lucasallan/rkt,achanda/rkt,kinvolk/rkt,Shashwatsh/rkt,joshix/rkt,coreos/rkt,rkt/rkt,jonboulle/rkt,yifan-gu/rkt,Shashwatsh/rkt,kinvolk/rkt,sstabellini/rkt,yifan-gu/rocket,jakon89/rkt,shobhit85/rkt,yifan-gu/rocket,intelsdi-x/rkt,dgonyeo/rkt,sstabellini/rkt,squeed/rkt,jakon89/rkt,intelsdi-x/rkt,yifan-gu/rkt,achanda/rkt,coreos/rkt,intelsdi-x/rkt,nhlfr/rkt,cab105/rkt,nhlfr/rkt,jonboulle/rkt,jakon89/rkt,yifan-gu/rocket,joshix/rkt,kinvolk/rkt,ybubnov/rkt,alban/rkt,Shashwatsh/rkt,cab105/rkt,lucasallan/rkt,joshix/rkt,nhlfr/rkt,rkt/rkt,dgonyeo/rkt,cab105/rkt,ybubnov/rkt,rkt/rkt,shobhit85/rkt,alban/rkt,sstabellini/rkt,joshix/rkt,yifan-gu/rkt,coreos/rkt,dgonyeo/rkt,shobhit85/rkt,achanda/rkt,lucasallan/rkt,alban/rkt