gzip: Fix update-alternatives
gzip: Fix update-alternatives

The rename was being done correctly in do_install (for just pn-gzip)
so remove a bad attempted rename in the postinst and suffix that and
prerm with pn-gzip while we're in here.

Signed-off-by: Tom Rini <4c3d5c8f8c21c27dd329bd585f481113514551fd@mentor.com>

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