bitbake.conf: sanitize FILESPATH
bitbake.conf: sanitize FILESPATH

- reverse OVERRIDES
- drop empty overrides
- uniq the list
- use nested variable references rather than getVar

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

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