build.sh will detect the locations of the libraries required by
the host executable, and sets the HOST_DLINK_PATHS environment
variable.
In EmulatorPkg/Unix/Host/Host.inf, this environment variable is
used in the linking build step.
Signed-off-by: jljusten
Reviewed-by: andrewfish
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12612 6f19259b-4bc3-4df7-8a09-765794883524