remove pkg-config dependency from lxc
remove pkg-config dependency from lxc

Stupid me, we don't want to add a dependency to an external
tool as the library has to be standalone.

Just let lxc to define a .pc file, so the upper layer will
find the needed informations to use it.

Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

Distrotech/lxc,regit/lxc,bostjan/lxc,akshaykarle/lxc,bmoar/lxc,szaszg/lxc,efiop/lxc,yubo/lxc,cjwatson/lxc,rowhit/lxc,fwilson42/lxc,JohnPeacockMessageSystems/lxc,ecarrara/lxc,ioops/lxc,fwilson42/lxc,christiaan/lxc,ecarrara/lxc,JohnPeacockMessageSystems/lxc,lazy404/lxc,yubo/lxc,caglar10ur/lxc,thmo/lxc,ostap/lxc,lazy404/lxc,GreatFruitOmsk/lxc,lisongmin/lxc,inokappa/lxc,cipriancraciun/lxc,abstrakraft/lxc-android-lxc,ojkastl/lxc_Patches,aeris/lxc,hallyn/lxc,sapun/lxc,bmoar/lxc,glensc/lxc,potatosalad/lxc,christiaan/lxc,QingweiPeterLan/cs188-lxc,Ponce/lxc,DarknessBeforeDawn/lxc,codebauss/lxc,smoser/lxc,yubo/lxc,tych0/lxc,abstrakraft/lxc-android-lxc,raspberrypython/lxc,rldleblanc/lxc,coconutpilot/lxc-gentoo-new,hkjolhede/lxc,major/lxc,ostap/lxc,rldleblanc/lxc,Pelagicore/lxc,regit/lxc,rldleblanc/lxc,usc-isi/lxc,rowhit/lxc,LynxChaus/lxc,ecarrara/lxc,Distrotech/lxc,sapun/lxc,aeris/lxc,ksperis/lxc,cjwatson/lxc,ysbnim/lxc,smoser/lxc,Ponce/lxc,akshaykarle/lxc,raspberrypython/lxc,caglar10ur/lxc,smoser/lxc,ioops/lxc,Ponce/lxc,GreatFruitOmsk/lxc,jirislaby/lxc,fwilson42/lxc,lazy404/lxc,thmo/lxc,codebauss/lxc,rowhit/lxc,hkjolhede/lxc,federicobriata/lxc,federicobriata/lxc,bostjan/lxc,ojkastl/lxc_Patches,codebauss/lxc,kylef/lxc,federicobriata/lxc,major/lxc,DarknessBeforeDawn/lxc,aeris/lxc,efiop/lxc,abstrakraft/lxc-android-lxc,akshaykarle/lxc,lisongmin/lxc,ioops/lxc,raspberrypython/lxc,ysbnim/lxc,Pelagicore/lxc,coconutpilot/lxc-gentoo-new,weizhenwei/lxc,armcc/lxc,ksperis/lxc,ysbnim/lxc,inokappa/lxc,ksperis/lxc,smoser/lxc,hkjolhede/lxc,tych0/lxc,szaszg/lxc,usc-isi/lxc,JohnPeacockMessageSystems/lxc,jirislaby/lxc,jirislaby/lxc,usc-isi/lxc,QingweiPeterLan/cs188-lxc,terceiro/lxc,LynxChaus/lxc,Distrotech/lxc,virajs/lxc,bmoar/lxc,major/lxc,terceiro/lxc,glensc/lxc,efiop/lxc,regit/lxc,armcc/lxc,ojkastl/lxc_Patches,QingweiPeterLan/cs188-lxc,hfuCN/lxc,hfuCN/lxc,virajs/lxc,DarknessBeforeDawn/lxc,glensc/lxc,szaszg/lxc,bostjan/lxc,potatosalad/lxc,weizhenwei/lxc,ss1h2a3tw/lxc,ss1h2a3tw/lxc,armcc/lxc,ojkastl/lxc_Patches,terceiro/lxc,LynxChaus/lxc,sapun/lxc,abstrakraft/lxc-android-lxc,cjwatson/lxc,christiaan/lxc,kylef/lxc,thmo/lxc,hallyn/lxc,GreatFruitOmsk/lxc,tych0/lxc,caglar10ur/lxc,lisongmin/lxc,hallyn/lxc,hfuCN/lxc,Pelagicore/lxc,ss1h2a3tw/lxc,virajs/lxc,weizhenwei/lxc,cipriancraciun/lxc