remoteproc: qcom-tz: Inform SMD about crashing remotes

When a remote processor crashes there is no indication in SMD, so we
need to inform the SMD driver that it should reset all open channels
associated with the remote processor.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
remoteproc: qcom-tz: Finish shutdown on timeout

When the remote processor have hit an fatal error, it will not perform
the stop-ack handshake. So we have to finish the shutdown process to not
leave the remote processor in a dangling state (stopping us from
bringing it up again).

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>