soc: qcom: ddr-health: add a structure to pass info to rpm

Driver needs to send address and size info to RPM. Add a structure to send
this information to rpm with a single kvp resource.

Change-Id: Ic8f285374926f8f8a462fc7a7371771841888649
Signed-off-by: Sarangdhar Joshi <spjoshi@codeaurora.org>