Event: add error event notify device disable by system suspend.

In this case, Lwis devices were powered down from kernel to
avoid ramdump and power leakage when system goes into suspend
but camera is still running. It needs to notify userspace to
stop camera process so that kernel and usrspace can be aligned.

Bug: 191546156
Bug: 190681502
Test: GCA, CTS
Signed-off-by: Nick Chung <nickchung@google.com>
Change-Id: Ie3b586097fa5b860de7cb303cb51912c60529418