e1000e: Only run S0ix flows if shutdown succeeded

e1000e: Only run S0ix flows if shutdown succeeded

BugLink: https://bugs.launchpad.net/bugs/1910541
If the shutdown failed, the part will be thawed and running
S0ix flows will put it into an undefined state.

Reported-by: Alexander Duyck <alexander.duyck@gmail.com>
Reviewed-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Tested-by: Yijun Shen <Yijun.shen@dell.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
(cherry picked from commit 808e0d8832cc81738f3e8df12dff0688352baf50)
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>