msm: smd: add support for distributed SSR

Distributed SSR removes the requirement for the Apps processor to
step in for the failed subsystem and close its edges.

Have Apps only close its own SMD edges during SSR.

Change-Id: Ida1dd54f88860a2d83b3f98bc4c783a63653eba7
Signed-off-by: Brent Hronik <bhronik@codeaurora.org>