GitLab

Add...
 - GigaDevice GD25T80
 - GigaDevice GD25Q10
 - GigaDevice GD25Q512

Also, improve some others.

Corresponding to flashrom svn r1685.
Signed-off-by: Nikolay Nikolaev <evrinoma@gmail.com>
Reviewed-by: Steven Zakulec <spzakulec@gmail.com>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>