lshal: Add timeout for IPC calls.

IPC calls into interfaces should be done fault-torelently.
Add a timeout for each IPC call made so that lshal won't be
indefinitely blocked even if the interface don't reply
promptly.

Bug: 35317039

Test: lshal

Change-Id: Icb8157716ad68bddb5b33304b9063aa6f233985d