[Mysql] Guide upgrade MySQL

Guide upgrade MySQL

reference: 

1. http://nghialuong.blogspot.com/2015/12/guide-install-mysql.html
2. http://dev.mysql.com/doc/refman/5.7/en/mysql-upgrade.html

Step 1: install mysql new version (1)
Thực hiện cài đặt theo hướng dẫn trong link 1
Step 2: upgrade mysql (2)