ipc: wcd-dsp-glink: increase timeout to 2 seconds

There seems to be a delay in processing WDSP open commands
on APPS side. Sometimes it is taking more than 1 second,
results error in wdsp channels initialization. Increase the
timeout value to avoid channel connect failures.

Change-Id: If46251f07763080729858dc612679ee10149f57b
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>