mtd: spi-nor: support for GD

commit 6c48dcc7d59935297216ddf35d0db54ceafb91c9 from
https://nv-tegra.nvidia.com/r/3rdparty/canonical/linux-jammy.git jetson_36.3

BugLink: https://bugs.launchpad.net/bugs/2034622

Add flash info for Gigadevice(GD25LT512M) device.

http://nvbugs/3866554

Signed-off-by: vinothkumarr <vinothkumarr@nvidia.com>
Reviewed-by: Kartik Rajput <kkartik@nvidia.com>
Tested-by: Kartik Rajput <kkartik@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Rajeshkumar Ramasamy <rajeshkumar.ramasamy@windriver.com>