[ELSA-2020-5503] ELSA-2020-5503-1: mariadb-connector-c security, bug fix, and enhancement update

[3.1.11-2]
- Require specific minimal version of the 'mariadb' package, if it is installed

[3.1.11-1]
- Rebase to 3.1.11

[3.1.9-1]
- Rebase to 3.1.9
- Overlinking issues fixed by upstream in 3.1.3 release
- Add explicit confict between mariadb-connector-c-devel and mysql-devel packages

[3.1.2-1]
- Rebase to 3.1.2
- Introducing ED25519 plugin
- Plugindir issues (from 3.0.9 release) fixed by upstream
Resolves: #1691176

[3.0.10-1]
- Rebase to 3.0.10
- Use macro for tarball name
- Use macro to set build flags
- Use macros for make commands
- Remove the scriptlets non relevant for RHEL-8
- Add info for the testsuite execution
- Remove glob from library version
- Remove info about the upstream issues

[3.0.8-2]
- Add 'zlib-devel' requirement in '-devel' subpackage. MariaDB requires
linking with '-lz', which will fail without the zlib library
- Resolves: #1710471

[3.0.8-1]
- Rebase to 3.0.8