msm: pil-q6v5-lpass: Error ready handling of lpass via SMP2P

Use the subsystem framework to use the error ready
interrupt during subsystem boot up. Do this my making use
of the SMP2P framework to get the SMP2P IRQ for error ready
and then include it in the subsystem descriptor during
registration with the subsystem framework.

Change-Id: I157630c2bd1cc2cf48327e8512b89881a00bfe77
Signed-off-by: Ravishankar Sarawadi <crsaraw@codeaurora.org>