soc: qcom: qmi_interface: Add default send timeout

Add a default send timeout for kernel qmi sockets. If a remote proc
crashes, there is a chance that the before shutdown cleanup will try
to send messages to the remote processor. When enough messages are
sent to a single port, the qrtr flow control will kick in and the QMI
socket will block indefinitly. Set the timeout to 10 seconds which
should be long enough to not affect normal functionality.

Change-Id: Ie12dd163a0c4ac1a3dc037e5a29e39395c3cc948
Signed-off-by: Chris Lew <clew@codeaurora.org>