qcom: ssr: Add sysmon-id property to subsystem dt entries

Add a "qcom,sysmon-id" property to subsystem dt entries
for storing the platform device id that sysmon is probed
with for that subsystem. This information is required to
remove having to statically store the names of subsystems
that have sysmon support.

Change-Id: I2fcc8718076877d80786dba4ed5c6216bbb67312
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>