[grub]: allow access from both console and serial

[lguohan]

Signed-off-by: Guohan Lu [email protected]

- What I did
allow access from both console and serial

- How I did it

- How to verify it

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

[qiluo-msft]

Ok to me. Could you educate more about the change in description? What is the console? What is the old behavior and why this is needed in what use case?

[lguohan]

console means the vga port. this is mainly used for virtual environment such as hyper-v or virtualbox where you have the virtual vga port to display the boot up process.