package/rpm: bump version to 4.17.0

package/rpm: bump version to 4.17.0

Bumping the version of the rpm package to v4.17. This new release
includes a series of key changes [1], notables includes:

 - Explicit requirement for lua v5.3+.
 - Berkeley DB database backend has been dropped.
 - beecrypt and NSS crypto backends have been dropped.

The argument `--with-external-db` was tied to Berkeley-related support,
which was removed in an older revision [2]. The argument
`--without-hackingdocs` was dropped in an older revision [3].

[1]: https://rpm.org/wiki/Releases/4.17.0
[2]: https://github.com/rpm-software-management/rpm/commit/e1d3811883dc9fe79fe7b5ff90f69b9998611128
[3]: https://github.com/rpm-software-management/rpm/commit/3017eae9a3952823f80932e84a7a1e81f983639a

Signed-off-by: James Knight <james.d.knight@live.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>