ARM: dts: msm: Add entries for virtual SSR notifications on SA8155 VM

Add ADSP and WLAN as clients of the virtual SSR notification
framework to support subsystem state notification virtualization.

Change-Id: I9c144adda390e99f66de2c7de0871149b3f957cd
Signed-off-by: Anant Goel <anantg@codeaurora.org>