cross.bbclass: Override BASEPKG_HOST_SYS
cross.bbclass: Override BASEPKG_HOST_SYS

* BASEPKG_HOST_SYS from bitbake.conf is set as if packages
  were being built for target. So we need to override it
  for cross packages.

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>
Acked-by: Andrea Adami <andrea.adami <at> gmail.com>

giobauermeister/openembedded,trini/openembedded,giobauermeister/openembedded,openembedded/openembedded,openembedded/openembedded,dave-billin/overo-ui-moos-auv,sampov2/audio-openembedded,dave-billin/overo-ui-moos-auv,SIFTeam/openembedded,sledz/oe,sampov2/audio-openembedded,Martix/Eonos,nzjrs/overo-openembedded,Martix/Eonos,Martix/Eonos,openpli-arm/openembedded,bticino/openembedded,buglabs/oe-buglabs,sutajiokousagi/openembedded,John-NY/overo-oe,giobauermeister/openembedded,JamesAng/oe,thebohemian/openembedded,sledz/oe,giobauermeister/openembedded,dellysunnymtech/sakoman-oe,philb/pbcl-oe-2010,Martix/Eonos,scottellis/overo-oe,dave-billin/overo-ui-moos-auv,yyli/overo-oe,sampov2/audio-openembedded,JamesAng/goe,nzjrs/overo-openembedded,libo/openembedded,libo/openembedded,SIFTeam/openembedded,rascalmicro/openembedded-rascal,xifengchuo/openembedded,JamesAng/oe,openembedded/openembedded,JamesAng/goe,buglabs/oe-buglabs,sentient-energy/emsw-oe-mirror,nx111/openembeded_openpli2.1_nx111,nzjrs/overo-openembedded,libo/openembedded,rascalmicro/openembedded-rascal,trini/openembedded,openpli-arm/openembedded,JamesAng/goe,philb/pbcl-oe-2010,yyli/overo-oe,scottellis/overo-oe,BlackPole/bp-openembedded,crystalfontz/openembedded,crystalfontz/openembedded,philb/pbcl-oe-2010,Martix/Eonos,crystalfontz/openembedded,John-NY/overo-oe,mrchapp/arago-oe-dev,xifengchuo/openembedded,yyli/overo-oe,openembedded/openembedded,nx111/openembeded_openpli2.1_nx111,JamesAng/oe,BlackPole/bp-openembedded,BlackPole/bp-openembedded,dave-billin/overo-ui-moos-auv,nzjrs/overo-openembedded,dave-billin/overo-ui-moos-auv,Martix/Eonos,sutajiokousagi/openembedded,SIFTeam/openembedded,trini/openembedded,nzjrs/overo-openembedded,thebohemian/openembedded,philb/pbcl-oe-2010,hulifox008/openembedded,dellysunnymtech/sakoman-oe,trini/openembedded,crystalfontz/openembedded,sutajiokousagi/openembedded,dellysunnymtech/sakoman-oe,nzjrs/overo-openembedded,thebohemian/openembedded,JamesAng/goe,trini/openembedded,openembedded/openembedded,libo/openembedded,JamesAng/goe,nx111/openembeded_openpli2.1_nx111,xifengchuo/openembedded,hulifox008/openembedded,rascalmicro/openembedded-rascal,mrchapp/arago-oe-dev,giobauermeister/openembedded,crystalfontz/openembedded,hulifox008/openembedded,libo/openembedded,xifengchuo/openembedded,openembedded/openembedded,mrchapp/arago-oe-dev,sampov2/audio-openembedded,anguslees/openembedded-android,bticino/openembedded,anguslees/openembedded-android,John-NY/overo-oe,scottellis/overo-oe,scottellis/overo-oe,sampov2/audio-openembedded,sledz/oe,philb/pbcl-oe-2010,xifengchuo/openembedded,giobauermeister/openembedded,SIFTeam/openembedded,sentient-energy/emsw-oe-mirror,rascalmicro/openembedded-rascal,bticino/openembedded,anguslees/openembedded-android,buglabs/oe-buglabs,SIFTeam/openembedded,openembedded/openembedded,sentient-energy/emsw-oe-mirror,dave-billin/overo-ui-moos-auv,buglabs/oe-buglabs,buglabs/oe-buglabs,sutajiokousagi/openembedded,yyli/overo-oe,rascalmicro/openembedded-rascal,dellysunnymtech/sakoman-oe,xifengchuo/openembedded,buglabs/oe-buglabs,rascalmicro/openembedded-rascal,dellysunnymtech/sakoman-oe,anguslees/openembedded-android,sentient-energy/emsw-oe-mirror,sutajiokousagi/openembedded,bticino/openembedded,BlackPole/bp-openembedded,JamesAng/oe,dellysunnymtech/sakoman-oe,xifengchuo/openembedded,thebohemian/openembedded,xifengchuo/openembedded,giobauermeister/openembedded,scottellis/overo-oe,SIFTeam/openembedded,anguslees/openembedded-android,giobauermeister/openembedded,nx111/openembeded_openpli2.1_nx111,mrchapp/arago-oe-dev,JamesAng/oe,giobauermeister/openembedded,openembedded/openembedded,buglabs/oe-buglabs,JamesAng/goe,thebohemian/openembedded,openpli-arm/openembedded,hulifox008/openembedded,crystalfontz/openembedded,sampov2/audio-openembedded,xifengchuo/openembedded,anguslees/openembedded-android,yyli/overo-oe,openpli-arm/openembedded,sentient-energy/emsw-oe-mirror,crystalfontz/openembedded,bticino/openembedded,yyli/overo-oe,BlackPole/bp-openembedded,Martix/Eonos,John-NY/overo-oe,mrchapp/arago-oe-dev,anguslees/openembedded-android,nx111/openembeded_openpli2.1_nx111,hulifox008/openembedded,nx111/openembeded_openpli2.1_nx111,SIFTeam/openembedded,rascalmicro/openembedded-rascal,openembedded/openembedded,scottellis/overo-oe,dellysunnymtech/sakoman-oe,openpli-arm/openembedded,openembedded/openembedded,sledz/oe,John-NY/overo-oe,rascalmicro/openembedded-rascal,philb/pbcl-oe-2010,sledz/oe,openembedded/openembedded,yyli/overo-oe,sutajiokousagi/openembedded,sentient-energy/emsw-oe-mirror,thebohemian/openembedded,sutajiokousagi/openembedded,bticino/openembedded,John-NY/overo-oe,trini/openembedded,JamesAng/goe,nzjrs/overo-openembedded,yyli/overo-oe,openpli-arm/openembedded,JamesAng/oe,dellysunnymtech/sakoman-oe,BlackPole/bp-openembedded,dellysunnymtech/sakoman-oe,John-NY/overo-oe,sentient-energy/emsw-oe-mirror,libo/openembedded,hulifox008/openembedded,nx111/openembeded_openpli2.1_nx111,trini/openembedded,BlackPole/bp-openembedded,dave-billin/overo-ui-moos-auv,bticino/openembedded,scottellis/overo-oe,JamesAng/oe,mrchapp/arago-oe-dev,sampov2/audio-openembedded,libo/openembedded,mrchapp/arago-oe-dev,sledz/oe,buglabs/oe-buglabs,hulifox008/openembedded,thebohemian/openembedded,sledz/oe,nx111/openembeded_openpli2.1_nx111,philb/pbcl-oe-2010,openpli-arm/openembedded