Previously, only status was returned.

Linux kernel behaviour is not affected as the changes only apply to the
debugger which is currently not shipped in the kernel.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>