stage1: revert interpreter changes in coreos stage1
stage1: revert interpreter changes in coreos stage1

86ad9034 bumped the image version for RKT_STAGE1_FROM=coreos and in
doing so removed the LD_LIBRARY_PATH and interpreter overrides. However
we still need those to ensure the stage1 is truly self-contained and
does not have dependencies on host libraries.

smarvin/rkt,krnowak/rkt,coreos/rkt,alexhersh/rkt,dgonyeo/rkt,cab105/rkt,mjg59/rkt,smarvin/rkt,matthaias/rkt,jjlakis/rkt,liubq919/rkt,jonboulle/rkt,michelangelo13/rkt,rot26/rkt,kinvolk/rkt,mike1729/rkt,maquanyi/rkt,tmrts/rkt,liugenping/rkt,joshix/rkt,tv42/rkt,monstermunchkin/rkt,dalanlan/rkt,squeed/rkt,chrisseto/rkt,Yhgenomics/rkt,iankronquist/rkt,lee212/rkt,s-urbaniak/rkt,MattDees/rkt,luebken/rkt,il9ue/rkt,marineam/rkt,lee212/rkt,rkt/rkt,intelsdi-x/rkt,cab105/rkt,Yhgenomics/rkt,shobhit85/rkt,sstabellini/rkt,crawford/rkt,il9ue/rkt,crawford/rkt,jonboulle/rkt,Yhgenomics/rkt,lee212/rkt,MattDees/rkt,linki/rkt,lucasallan/rkt,s-urbaniak/rkt,matthaias/rkt,tmrts/rkt,mike1729/rkt,marineam/rkt,rhvgoyal/rkt,sgotti/rkt,fdserr/rkt,maquanyi/rkt,krnowak/rkt,cab105/rkt,markllama/rkt,michelangelo13/rkt,kinvolk/rkt,Wilybald/rkt,sgotti/rkt,iaguis/rkt,jjlakis/rkt,markllama/rkt,bsmr-go/rkt,sstabellini/rkt,adfernandes/rkt,yifan-gu/rkt,sinfomicien/rkt,ybubnov/rkt,lucasallan/rkt,sstabellini/rkt,alban/rkt,jzelinskie/rkt,akshaykarle/rkt,coreos/rkt,squeed/rkt,liugenping/rkt,kbrwn/rkt,blixtra/rkt,ChengTiesheng/rkt,squaremo/rkt,jzelinskie/rkt,intelsdi-x/rkt,krnowak/rkt,coreos/rkt,lucasallan/rkt,linki/rkt,Wilybald/rkt,luebken/rkt,rkt/rkt,tixxdz/rkt,achanda/rkt,rkt/rkt,sinfomicien/rkt,tmrts/rkt,euank/rkt,nhlfr/rkt,jasonchaffee/rkt,iaguis/rkt,alexhersh/rkt,Shashwatsh/rkt,fdserr/rkt,liugenping/rkt,shobhit85/rkt,wparad/rkt,wparad/rkt,maquanyi/rkt,jakon89/rkt,liubq919/rkt,rkt/rkt,Shashwatsh/rkt,smarvin/rkt,endocode/rkt,liubq919/rkt,bsmr-go/rkt,chrisseto/rkt,joshix/rkt,ybubnov/rkt,MattDees/rkt,squeed/rkt,jakon89/rkt,kbrwn/rkt,bsmr-go/rkt,s-urbaniak/rkt,wparad/rkt,dalanlan/rkt,rhvgoyal/rkt,tv42/rkt,mjg59/rkt,shobhit85/rkt,iankronquist/rkt,lucasallan/rkt,ybubnov/rkt,squaremo/rkt,tv42/rkt,crawford/rkt,rot26/rkt,alexhersh/rkt,Wilybald/rkt,jzelinskie/rkt,jasonchaffee/rkt,monstermunchkin/rkt,blixtra/rkt,yifan-gu/rocket,nhlfr/rkt,intfrr/rkt,rot26/rkt,ChengTiesheng/rkt,alban/rkt,kinvolk/rkt,mjg59/rkt,intfrr/rkt,akshaykarle/rkt,intfrr/rkt,il9ue/rkt,iankronquist/rkt,rhvgoyal/rkt,kbrwn/rkt,Wilybald/rkt,matthaias/rkt,iaguis/rkt,adfernandes/rkt,Shashwatsh/rkt,sgotti/rkt,tixxdz/rkt,michelangelo13/rkt,dgonyeo/rkt,dalanlan/rkt,jasonchaffee/rkt,endocode/rkt,akshaykarle/rkt,jakon89/rkt,squaremo/rkt,kinvolk/rkt,linki/rkt,alban/rkt,endocode/rkt,blixtra/rkt,monstermunchkin/rkt,nhlfr/rkt,chrisseto/rkt,markllama/rkt,yifan-gu/rocket,achanda/rkt,achanda/rkt,jonboulle/rkt,marineam/rkt,yifan-gu/rkt,euank/rkt,sinfomicien/rkt,joshix/rkt,yifan-gu/rocket,adfernandes/rkt,tixxdz/rkt,jjlakis/rkt,intelsdi-x/rkt,joshix/rkt,dgonyeo/rkt,yifan-gu/rkt,euank/rkt,fdserr/rkt,mike1729/rkt,ChengTiesheng/rkt,luebken/rkt