glmark2: Add virtual/libx11 dependency
glmark2: Add virtual/libx11 dependency

* without it, do_configure fails:
  | Checking for 'x11'                       : not found
  | The configuration failed

Signed-off-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@gmail.com>

openembedded/meta-openembedded,shr-distribution/meta-oe,rdm-dev/meta-openembedded,fredcadete/meta-openembedded,dongkc/meta-openembedded,rehsack/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,dm8tbr/kodi-wip,trikset/meta-openembedded,lixinfnst/meta-openembedded,lixinfnst/meta-openembedded,dongkc/meta-openembedded,amery/meta-openembedded,victronenergy/meta-openembedded,trikset/meta-openembedded,trikset/meta-openembedded,kraj/meta-openembedded,rehsack/meta-openembedded,dm8tbr/kodi-wip,fredcadete/meta-openembedded,openembedded/meta-openembedded,joelagnel/meta-openembedded,moto-timo/meta-openembedded,amery/meta-openembedded,trikset/meta-openembedded,rofehr/meta-openembedded,victronenergy/meta-openembedded,epylar/meta-openembedded,schnitzeltony/meta-openembedded,rofehr/meta-openembedded,joelagnel/meta-openembedded,joelagnel/meta-openembedded,shr-distribution/meta-oe,lixinfnst/meta-openembedded,VCTLabs/meta-openembedded,dm8tbr/kodi-wip,moto-timo/meta-openembedded,joelagnel/meta-openembedded,MCherifiOSS/meta-openembedded,shr-distribution/meta-oe,rdm-dev/meta-openembedded,fredcadete/meta-openembedded,RedFIR/meta-openembedded,MCherifiOSS/meta-openembedded,moto-timo/meta-openembedded,fredcadete/meta-openembedded,mrchapp/meta-openembedded,mrchapp/meta-openembedded,dm8tbr/kodi-wip,trikset/meta-openembedded,lgirdk/meta-openembedded,lixinfnst/meta-openembedded,rehsack/meta-openembedded,dongkc/meta-openembedded,kraj/meta-openembedded,rehsack/meta-openembedded,amery/meta-openembedded,rehsack/meta-openembedded,dm8tbr/kodi-wip,amery/meta-openembedded,rdm-dev/meta-openembedded,schnitzeltony/meta-openembedded,trikset/meta-openembedded,rehsack/meta-openembedded,mrchapp/meta-openembedded,epylar/meta-openembedded,VCTLabs/meta-openembedded,lgirdk/meta-openembedded,lgirdk/meta-openembedded,trikset/meta-openembedded,schnitzeltony/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,rofehr/meta-openembedded,victronenergy/meta-openembedded,rdm-dev/meta-openembedded,rdm-dev/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,mrchapp/meta-openembedded,VCTLabs/meta-openembedded,RedFIR/meta-openembedded,openembedded/meta-openembedded,RealVNC/yocto_imx6sabreauto_meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,shr-distribution/meta-oe,akuster/meta-openembedded,RedFIR/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,shr-distribution/meta-oe,lgirdk/meta-openembedded,openembedded/meta-openembedded,RedFIR/meta-openembedded,amery/meta-openembedded,kraj/meta-openembedded,epylar/meta-openembedded,joelagnel/meta-openembedded,MCherifiOSS/meta-openembedded,kraj/meta-openembedded,victronenergy/meta-openembedded,shr-distribution/meta-oe,MCherifiOSS/meta-openembedded,openembedded/meta-openembedded,mrchapp/meta-openembedded,akuster/meta-openembedded,rehsack/meta-openembedded,joelagnel/meta-openembedded,RedFIR/meta-openembedded,schnitzeltony/meta-openembedded,mrchapp/meta-openembedded,dm8tbr/kodi-wip,fredcadete/meta-openembedded,RealVNC/yocto_imx6sabreauto_meta-openembedded,mrchapp/meta-openembedded,fredcadete/meta-openembedded,victronenergy/meta-openembedded,victronenergy/meta-openembedded,rdm-dev/meta-openembedded,kraj/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,fredcadete/meta-openembedded,epylar/meta-openembedded,dm8tbr/kodi-wip,sigma-embedded/elito-org.openembedded.meta,rofehr/meta-openembedded,RealVNC/yocto_imx6sabreauto_meta-openembedded,VCTLabs/meta-openembedded,joelagnel/meta-openembedded,schnitzeltony/meta-openembedded,rofehr/meta-openembedded,akuster/meta-openembedded,rdm-dev/meta-openembedded,joelagnel/meta-openembedded,VCTLabs/meta-openembedded,trikset/meta-openembedded,epylar/meta-openembedded,schnitzeltony/meta-openembedded,lgirdk/meta-openembedded,RedFIR/meta-openembedded,shr-distribution/meta-oe,akuster/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,RealVNC/yocto_imx6sabreauto_meta-openembedded,RedFIR/meta-openembedded,rdm-dev/meta-openembedded,RedFIR/meta-openembedded,lixinfnst/meta-openembedded,shr-distribution/meta-oe,rofehr/meta-openembedded,rofehr/meta-openembedded,MCherifiOSS/meta-openembedded,MCherifiOSS/meta-openembedded,rofehr/meta-openembedded,VCTLabs/meta-openembedded,dongkc/meta-openembedded,RealVNC/yocto_imx6sabreauto_meta-openembedded,amery/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,dongkc/meta-openembedded,kraj/meta-openembedded,dm8tbr/kodi-wip,lgirdk/meta-openembedded,lgirdk/meta-openembedded,lixinfnst/meta-openembedded,kraj/meta-openembedded,epylar/meta-openembedded,schnitzeltony/meta-openembedded,amery/meta-openembedded,amery/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,epylar/meta-openembedded,epylar/meta-openembedded,fredcadete/meta-openembedded,victronenergy/meta-openembedded,akuster/meta-openembedded