linux-kexecboot: reset DEFAULT_PREFERENCE = "-1"
linux-kexecboot: reset DEFAULT_PREFERENCE = "-1"

* changed by mistake with commit 9c72d93981212efdbfb87ad2b3c1ac4a8f43daf7
* def. pref. will be set only for specific machines (Zaurus) soon
* sorry for the noise

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