msm: npu: Add ssr support in dsp mode

When npu software runs in dsp mode, part of ssr handling will be
done in dsp. This change is to handle this case properly.

Change-Id: I63d49e117f56dbb489ef3065b764ade9f1f4c3e6
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>