Build script Fix path bug

1) chdir %~dp0  goto cygwin path /c/.../ build-fpga instead of c:\jenkins\Slaves\workspace\build-fpga

fix use chdir ..

2) sh --login --noprofile redcell_build.sh  dont work
replace by direct call => # redcell_build.sh since sh.exe is in windows path
Remove big file from build then run git repo cleanign script

https://handyem.atlassian.net/wiki/display/SS/Remove+big+files+from+git+repository
remove CVS with comit and remove from git repo with https://handyem.atlassian.net/wiki/display/SS/Remove+big+files+from+git+repository