e2e: node: {cpu,topo}mgr: don't assume cpu capacity >= 2
e2e: node: {cpu,topo}mgr: don't assume cpu capacity >= 2

Even though CI machines _usually_ have at least two cpus,
let's rather not assume this holds true, and let's actually
check the allocatable CPUs, skipping even the simplest
tests if the assumption is broken, to avoid false negatives.

Signed-off-by: Francesco Romani <c7100b580e6017ef67482ace46578cdd2d2e0dfe@redhat.com>

chestack/kubernetes,linux-on-ibm-z/kubernetes,dixudx/kubernetes,MikeSpreitzer/kubernetes,aledbf/kubernetes,fabriziopandini/kubernetes,mengqiy/kubernetes,olivierlemasle/kubernetes,rnaveiras/kubernetes,dixudx/kubernetes,lojies/kubernetes,rrati/kubernetes,rrati/kubernetes,ii/kubernetes,PiotrProkop/kubernetes,chestack/kubernetes,dixudx/kubernetes,roberthbailey/kubernetes,tengqm/kubernetes,mikebrow/kubernetes,jingxu97/kubernetes,k82cn/kubernetes,thockin/kubernetes,mosoft521/kubernetes,mikedanese/kubernetes,jessfraz/kubernetes,mkumatag/kubernetes,verb/kubernetes,iameli/kubernetes,soltysh/kubernetes,mikedanese/kubernetes,feiskyer/kubernetes,cblecker/kubernetes,zhangmingld/kubernetes,jingxu97/kubernetes,verb/kubernetes,chestack/kubernetes,matthyx/kubernetes,kevin-wangzefeng/kubernetes,humblec/kubernetes,ping035627/kubernetes,dims/kubernetes,openshift/kubernetes,PiotrProkop/kubernetes,tengqm/kubernetes,k82cn/kubernetes,jackfrancis/kubernetes,ping035627/kubernetes,nikhita/kubernetes,liggitt/kubernetes,MikeSpreitzer/kubernetes,bparees/kubernetes,kevin-wangzefeng/kubernetes,deads2k/kubernetes,carlory/kubernetes,shyamjvs/kubernetes,shyamjvs/kubernetes,liggitt/kubernetes,olivierlemasle/kubernetes,GulajavaMinistudio/kubernetes,matthyx/kubernetes,liggitt/kubernetes,jessfraz/kubernetes,BenTheElder/kubernetes,mosoft521/kubernetes,li-ang/kubernetes,GulajavaMinistudio/kubernetes,csrwng/kubernetes,carlory/kubernetes,mikedanese/kubernetes,aledbf/kubernetes,jsafrane/kubernetes,nikhita/kubernetes,aledbf/kubernetes,wongma7/kubernetes,spzala/kubernetes,warmchang/kubernetes,iameli/kubernetes,iameli/kubernetes,linux-on-ibm-z/kubernetes,sdminonne/kubernetes,cblecker/kubernetes,rnaveiras/kubernetes,mikebrow/kubernetes,mikebrow/kubernetes,warmchang/kubernetes,zhouhaibing089/kubernetes,soltysh/kubernetes,mikebrow/kubernetes,alejandroEsc/kubernetes,ravilr/kubernetes,li-ang/kubernetes,gnufied/kubernetes,zhouhaibing089/kubernetes,mahak/kubernetes,mosoft521/kubernetes,ravilr/kubernetes,cblecker/kubernetes,jessfraz/kubernetes,BenTheElder/kubernetes,mikedanese/kubernetes,MikeSpreitzer/kubernetes,linux-on-ibm-z/kubernetes,verb/kubernetes,wongma7/kubernetes,kubernetes/kubernetes,feiskyer/kubernetes,jingxu97/kubernetes,mkumatag/kubernetes,dims/kubernetes,ii/kubernetes,kubernetes/kubernetes,PiotrProkop/kubernetes,wongma7/kubernetes,mosoft521/kubernetes,mahak/kubernetes,iameli/kubernetes,roberthbailey/kubernetes,matthyx/kubernetes,spzala/kubernetes,MikeSpreitzer/kubernetes,jackfrancis/kubernetes,tengqm/kubernetes,aledbf/kubernetes,warmchang/kubernetes,zhangmingld/kubernetes,tengqm/kubernetes,carlory/kubernetes,linux-on-ibm-z/kubernetes,lojies/kubernetes,chestack/kubernetes,roberthbailey/kubernetes,PiotrProkop/kubernetes,fabriziopandini/kubernetes,thockin/kubernetes,mikedanese/kubernetes,jingxu97/kubernetes,zhouhaibing089/kubernetes,mengqiy/kubernetes,mahak/kubernetes,feiskyer/kubernetes,matthyx/kubernetes,jsafrane/kubernetes,kubernetes/kubernetes,spzala/kubernetes,nikhita/kubernetes,ravilr/kubernetes,alejandroEsc/kubernetes,rrati/kubernetes,ping035627/kubernetes,csrwng/kubernetes,ii/kubernetes,mosoft521/kubernetes,wongma7/kubernetes,liggitt/kubernetes,ravilr/kubernetes,mikebrow/kubernetes,aledbf/kubernetes,tengqm/kubernetes,ping035627/kubernetes,jsafrane/kubernetes,deads2k/kubernetes,warmchang/kubernetes,kevin-wangzefeng/kubernetes,dims/kubernetes,mengqiy/kubernetes,zhangmingld/kubernetes,bparees/kubernetes,gnufied/kubernetes,csrwng/kubernetes,liggitt/kubernetes,rnaveiras/kubernetes,olivierlemasle/kubernetes,chestack/kubernetes,BenTheElder/kubernetes,feiskyer/kubernetes,jackfrancis/kubernetes,roberthbailey/kubernetes,dims/kubernetes,k82cn/kubernetes,enj/kubernetes,kubernetes/kubernetes,lojies/kubernetes,jessfraz/kubernetes,zhangmingld/kubernetes,GulajavaMinistudio/kubernetes,ravilr/kubernetes,humblec/kubernetes,iameli/kubernetes,shyamjvs/kubernetes,openshift/kubernetes,mkumatag/kubernetes,sdminonne/kubernetes,warmchang/kubernetes,k82cn/kubernetes,BenTheElder/kubernetes,li-ang/kubernetes,olivierlemasle/kubernetes,MikeSpreitzer/kubernetes,soltysh/kubernetes,feiskyer/kubernetes,gnufied/kubernetes,jackfrancis/kubernetes,soltysh/kubernetes,cblecker/kubernetes,soltysh/kubernetes,thockin/kubernetes,rrati/kubernetes,fabriziopandini/kubernetes,spzala/kubernetes,humblec/kubernetes,lojies/kubernetes,li-ang/kubernetes,dixudx/kubernetes,csrwng/kubernetes,gnufied/kubernetes,cblecker/kubernetes,kevin-wangzefeng/kubernetes,BenTheElder/kubernetes,mengqiy/kubernetes,thockin/kubernetes,lojies/kubernetes,jingxu97/kubernetes,jessfraz/kubernetes,nikhita/kubernetes,GulajavaMinistudio/kubernetes,enj/kubernetes,enj/kubernetes,csrwng/kubernetes,sdminonne/kubernetes,rnaveiras/kubernetes,humblec/kubernetes,GulajavaMinistudio/kubernetes,deads2k/kubernetes,ii/kubernetes,bparees/kubernetes,shyamjvs/kubernetes,shyamjvs/kubernetes,openshift/kubernetes,fabriziopandini/kubernetes,jsafrane/kubernetes,zhangmingld/kubernetes,olivierlemasle/kubernetes,mkumatag/kubernetes,enj/kubernetes,m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