packaged-staging: use oe_run rather than os.system
packaged-staging: use oe_run rather than os.system

This ensures that the output of the stage manager is swallowed, rather than
shown unnecessarily to the user.

Signed-off-by: Chris Larson <4c8c411260e601995081b113a5ef94a26eff2b25@mentor.com>

JamesAng/goe,John-NY/overo-oe,buglabs/oe-buglabs,trini/openembedded,anguslees/openembedded-android,Martix/Eonos,dave-billin/overo-ui-moos-auv,JamesAng/goe,hulifox008/openembedded,buglabs/oe-buglabs,sentient-energy/emsw-oe-mirror,buglabs/oe-buglabs,xifengchuo/openembedded,yyli/overo-oe,buglabs/oe-buglabs,John-NY/overo-oe,SIFTeam/openembedded,SIFTeam/openembedded,John-NY/overo-oe,nx111/openembeded_openpli2.1_nx111,rascalmicro/openembedded-rascal,libo/openembedded,SIFTeam/openembedded,yyli/overo-oe,sentient-energy/emsw-oe-mirror,sledz/oe,openembedded/openembedded,dave-billin/overo-ui-moos-auv,rascalmicro/openembedded-rascal,BlackPole/bp-openembedded,hulifox008/openembedded,scottellis/overo-oe,anguslees/openembedded-android,rascalmicro/openembedded-rascal,dave-billin/overo-ui-moos-auv,giobauermeister/openembedded,libo/openembedded,openpli-arm/openembedded,hulifox008/openembedded,BlackPole/bp-openembedded,thebohemian/openembedded,dave-billin/overo-ui-moos-auv,dellysunnymtech/sakoman-oe,SIFTeam/openembedded,sutajiokousagi/openembedded,JamesAng/goe,BlackPole/bp-openembedded,giobauermeister/openembedded,giobauermeister/openembedded,hulifox008/openembedded,libo/openembedded,sampov2/audio-openembedded,thebohemian/openembedded,anguslees/openembedded-android,Martix/Eonos,sampov2/audio-openembedded,hulifox008/openembedded,sutajiokousagi/openembedded,BlackPole/bp-openembedded,giobauermeister/openembedded,openpli-arm/openembedded,nx111/openembeded_openpli2.1_nx111,sampov2/audio-openembedded,mrchapp/arago-oe-dev,openembedded/openembedded,anguslees/openembedded-android,sledz/oe,buglabs/oe-buglabs,openembedded/openembedded,giobauermeister/openembedded,giobauermeister/openembedded,buglabs/oe-buglabs,Martix/Eonos,SIFTeam/openembedded,sentient-energy/emsw-oe-mirror,openpli-arm/openembedded,sledz/oe,sledz/oe,thebohemian/openembedded,sampov2/audio-openembedded,sampov2/audio-openembedded,JamesAng/oe,dellysunnymtech/sakoman-oe,thebohemian/openembedded,mrchapp/arago-oe-dev,sutajiokousagi/openembedded,JamesAng/oe,JamesAng/oe,Martix/Eonos,sledz/oe,openpli-arm/openembedded,nx111/openembeded_openpli2.1_nx111,scottellis/overo-oe,dave-billin/overo-ui-moos-auv,openembedded/openembedded,xifengchuo/openembedded,hulifox008/openembedded,openembedded/openembedded,xifengchuo/openembedded,nx111/openembeded_openpli2.1_nx111,JamesAng/oe,anguslees/openembedded-android,openembedded/openembedded,dellysunnymtech/sakoman-oe,xifengchuo/openembedded,JamesAng/oe,JamesAng/oe,sutajiokousagi/openembedded,nx111/openembeded_openpli2.1_nx111,xifengchuo/openembedded,John-NY/overo-oe,openembedded/openembedded,openembedded/openembedded,xifengchuo/openembedded,Martix/Eonos,scottellis/overo-oe,rascalmicro/openembedded-rascal,JamesAng/goe,sampov2/audio-openembedded,dellysunnymtech/sakoman-oe,John-NY/overo-oe,John-NY/overo-oe,John-NY/overo-oe,mrchapp/arago-oe-dev,openembedded/openembedded,scottellis/overo-oe,mrchapp/arago-oe-dev,sutajiokousagi/openembedded,xifengchuo/openembedded,openpli-arm/openembedded,sentient-energy/emsw-oe-mirror,thebohemian/openembedded,JamesAng/oe,giobauermeister/openembedded,scottellis/overo-oe,dellysunnymtech/sakoman-oe,rascalmicro/openembedded-rascal,thebohemian/openembedded,Martix/Eonos,libo/openembedded,yyli/overo-oe,dellysunnymtech/sakoman-oe,buglabs/oe-buglabs,mrchapp/arago-oe-dev,BlackPole/bp-openembedded,JamesAng/goe,anguslees/openembedded-android,mrchapp/arago-oe-dev,sampov2/audio-openembedded,sentient-energy/emsw-oe-mirror,Martix/Eonos,dellysunnymtech/sakoman-oe,yyli/overo-oe,scottellis/overo-oe,libo/openembedded,rascalmicro/openembedded-rascal,BlackPole/bp-openembedded,JamesAng/goe,giobauermeister/openembedded,JamesAng/goe,scottellis/overo-oe,trini/openembedded,dellysunnymtech/sakoman-oe,nx111/openembeded_openpli2.1_nx111,SIFTeam/openembedded,giobauermeister/openembedded,trini/openembedded,trini/openembedded,trini/openembedded,trini/openembedded,BlackPole/bp-openembedded,buglabs/oe-buglabs,anguslees/openembedded-android,sentient-energy/emsw-oe-mirror,openembedded/openembedded,mrchapp/arago-oe-dev,libo/openembedded,openpli-arm/openembedded,yyli/overo-oe,SIFTeam/openembedded,yyli/overo-oe,dave-billin/overo-ui-moos-auv,xifengchuo/openembedded,sentient-energy/emsw-oe-mirror,yyli/overo-oe,openpli-arm/openembedded,dave-billin/overo-ui-moos-auv,trini/openembedded,yyli/overo-oe,sutajiokousagi/openembedded,xifengchuo/openembedded,dellysunnymtech/sakoman-oe,rascalmicro/openembedded-rascal,openembedded/openembedded,sledz/oe,rascalmicro/openembedded-rascal,sledz/oe,libo/openembedded,sutajiokousagi/openembedded,hulifox008/openembedded,nx111/openembeded_openpli2.1_nx111,thebohemian/openembedded,nx111/openembeded_openpli2.1_nx111