Azure/GitLab: bump OpenSBI version to 0.9

Version 0.9 of OpenSBI provides the system reset extension which allows us
to reset and power off boards without board specific code.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2 files changed