This update for mariadb and mariadb-connector-c fixes the following issues:

mariadb:

- Update to version 10.2.25 (bsc#1136035)
- CVE-2019-2628: Fixed a remote denial of service by an privileged attacker (bsc#1136035).
- CVE-2019-2627: Fixed another remote denial of service by an privileged attacker (bsc#1136035).
- CVE-2019-2614: Fixed a potential remote denial of service by an privileged attacker (bsc#1136035).
- Fixed reading options for multiple instances if my${INSTANCE}.cnf is used (bsc#1132666)

mariadb-connector-c:

- Update to version 3.1.2 (bsc#1136035)
- Moved libmariadb.pc from /usr/lib/pkgconfig to /usr/lib64/pkgconfig for x86_64 (bsc#1126088)

This update was imported from the SUSE:SLE-15:Update update project.