The build of MySQL-python started to fail after the update to
Percona-Server-devel-56-5.6.27-rel76.0.el7.x86_64 with:
/usr/bin/ld: cannot find -lmysqlclient
It appears Percona-Server-devel package provides a broken
/usr/lib64/libmysqlclient.so that points to nonexistent
libmysqlclient.so.18.
Fix the build by installing MariaDB-shared package from the mariadb
repo that contains the missing file.
Change-Id: Ia95fddfe44f54bd355c6f3d0ac895fdc05cecff9
Closes-Bug: #1526129
b5878b2449