host_pdr_handler: remove PDRs across boots

Remove PDRs (from the BMC's repo) received by the host when the host
powers off. This is because PDRs could change across host's boots.

Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: I4a45edd26624068d21bf07099e8480ec7a8a3d0d
diff --git a/host_pdr_handler.hpp b/host_pdr_handler.hpp
index fec6da6..850afdb 100644
--- a/host_pdr_handler.hpp
+++ b/host_pdr_handler.hpp
@@ -117,6 +117,8 @@
      *  association tree
      */
     std::map<EntityType, pldm_entity> parents;
+    /** @brief D-Bus property changed signal match */
+    std::unique_ptr<sdbusplus::bus::match::match> hostOffMatch;
 };
 
 } // namespace pldm