tools: don't gitignore base64 config.h
The file is checked into git. Ignoring it causes a very non-obvious way of breaking tarball builds:
- Download and unpack tarball
- Check the sources into git with
git init; git add .; git commit -a
- Clean the source tree with
git clean -dfx
- Run
./configure && make
- Observe build failure because config.h is missing