fix mysql clean on ubuntu

Closes-Bug: 1409902
Change-Id: I72900eb2c7f3c6f66d829b10e9bb73b6d186da98
diff --git a/lib/databases/mysql b/lib/databases/mysql
index 0e423de..62c3d4c 100644
--- a/lib/databases/mysql
+++ b/lib/databases/mysql
@@ -23,7 +23,7 @@
     if is_ubuntu; then
         # Get ruthless with mysql
         stop_service $MYSQL
-        uninstall_package mysql-server mariadb-server
+        uninstall_package mysql-common mariadb-common
         sudo rm -rf /var/lib/mysql
         sudo rm -rf /etc/mysql
         return