msm: pcie: do not recover link for unexpected case

For some situations where linkdown event should not happen,
recovering link by bus driver alone will be out of sync. Thus,
avoid recovering the link in this kind of situation and only show
error notification.

Change-Id: I260583e3b4431029dfd4fc33d67bc86c3acfe6e7
Signed-off-by: Yan He <yanhe@codeaurora.org>