php: add PACKAGECONFIG to fix implicit dependency on libpam
php: add PACKAGECONFIG to fix implicit dependency on libpam

Add a pam PACKAGECONFIG option defaulted from the pam DISTRO_FEATURES
item, so that if pam isn't in DISTRO_FEATURES, it is explicitly
disabled (and conversely if it is in DISTRO_FEATURES that we have an
explicit dependency on libpam).

Signed-off-by: Paul Eggleton <737d4dae46a541673d7bf4e0d5b32714b16528d8@linux.intel.com>

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