OpenOCD devel 0.8.0-rc2

Closes #28639.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
open-ocd: hoist pkg-config dep
gifsicle 1.83

Closes #28638.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
go 1.3beta1

Closes #28636.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>