fixes #4972 - move hammer-cli-katello config location to the right spot

fixing

```
<snip>
RPM build errors:
error: File not found: /builddir/build/BUILDROOT/rubygem-hammer_cli_katello-0.0.3-1.201403311303gitd94edb6.git.0.b703f5e.el6.noarch/etc/hammer/hammer.modules.d/katello.yml
    File not found: /builddir/build/BUILDROOT/rubygem-hammer_cli_katello-0.0.3-1.201403311303gitd94edb6.git.0.b703f5e.el6.noarch/etc/hammer/hammer.modules.d/katello.yml
Child return code was: 1
<snip>
```