SUSE-SU-2020:2235-1 Security update for libreoffice

This update for libreoffice fixes the following issues: - Update to 6.4.5.2: Various fixes all around - Remove mime-info and application-registry dirs bsc1062631 - Fix bsc1172053 - LO-L3: Image disappears during roundtrip 365-Impress-365 bsc1172053.diff - Fix bsc1172189 - LO-L3: Impress crashes...