glmark2: depend on modern libpng
glmark2: depend on modern libpng

libpng 1.2 is being removed from oe-core as it's well obsolete.

Signed-off-by: Alexander Kanavin <7fcc64a24d57b2e98a8e08b10e35173b37477fa8@linux.intel.com>
Signed-off-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@gmail.com>

kraj/meta-openembedded,schnitzeltony/meta-openembedded,lgirdk/meta-openembedded,kraj/meta-openembedded,schnitzeltony/meta-openembedded,moto-timo/meta-openembedded,rehsack/meta-openembedded,mrchapp/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,sigma-embedded/elito-org.openembedded.meta,moto-timo/meta-openembedded,victronenergy/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,amery/meta-openembedded,amery/meta-openembedded,rehsack/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,sigma-embedded/elito-org.openembedded.meta,mrchapp/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,amery/meta-openembedded,mrchapp/meta-openembedded,lgirdk/meta-openembedded,kraj/meta-openembedded,mrchapp/meta-openembedded,openembedded/meta-openembedded,kraj/meta-openembedded,lgirdk/meta-openembedded,schnitzeltony/meta-openembedded,VCTLabs/meta-openembedded,lgirdk/meta-openembedded,amery/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,lgirdk/meta-openembedded,mrchapp/meta-openembedded,kraj/meta-openembedded,victronenergy/meta-openembedded,openembedded/meta-openembedded,victronenergy/meta-openembedded,mrchapp/meta-openembedded,victronenergy/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,VCTLabs/meta-openembedded,openembedded/meta-openembedded,amery/meta-openembedded,victronenergy/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,amery/meta-openembedded,amery/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,victronenergy/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,mrchapp/meta-openembedded,kraj/meta-openembedded,rehsack/meta-openembedded,moto-timo/meta-openembedded,amery/meta-openembedded,schnitzeltony/meta-openembedded,victronenergy/meta-openembedded,schnitzeltony/meta-openembedded,kraj/meta-openembedded,lgirdk/meta-openembedded,rehsack/meta-openembedded,VCTLabs/meta-openembedded,lgirdk/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded