[Buildroot] [PATCH 2/2] libostree: bump to version 2018.9.1

[Marcus Folkesson]

On Tue, Nov 20, 2018 at 10:48:24PM +0100, Fabrice Fontaine wrote:
> Bump to v2018.9 added ostree-finalize-staged.path through
> https://github.com/ostreedev/ostree/commit/ac1a919ffd4fe944d06c4f4510604baa73d1bf8e
> 
> However, this file was not added in the tarball until commit:
> https://github.com/ostreedev/ostree/commit/62594765b2fae72e332ffb21fbd11085d911ef83
> 
> So use the new 2018.9.1 tarball to get this file otherwise build with
> systemd will fail
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/fc6435282630e60927f88bf5954805ebbaa60cb3
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

Reviewed-by: Marcus Folkesson <marcus.folkesson at gmail.com>