icnss: Reject QMI server arrive if it comes without server exit

During ssr/pdr ideally, wlan platform driver should get
server exit notification over QMI followed by server arrive
but In some cases, wlan platform driver gets server arrive
indication without prior server exit indication. So, this
change asserts the system if server arrive comes without
server exit indication.

Change-Id: I9fe801fc95e32750b958c0cc673fd47605e92919
Signed-off-by: Sandeep Singh <sandsing@codeaurora.org>