regs: Add initial dbus attributes for system type

Added the possible dbus object path, interface, and property that would
contain the system type needed to load the correct regulator
configuration data.

Tested:
    N/A

Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
Change-Id: Ifcc2579bdc67d708fef4c6ffe27149125f20f0b8
diff --git a/phosphor-regulators/src/manager.hpp b/phosphor-regulators/src/manager.hpp
index b6560f6..ab51a1d 100644
--- a/phosphor-regulators/src/manager.hpp
+++ b/phosphor-regulators/src/manager.hpp
@@ -12,6 +12,10 @@
 
 constexpr auto busName = "xyz.openbmc_project.Power.Regulators";
 constexpr auto objPath = "/xyz/openbmc_project/power/regulators/manager";
+constexpr auto sysDbusObj = "/xyz/openbmc_project/inventory";
+constexpr auto sysDbusPath = "/xyz/openbmc_project/inventory/system";
+constexpr auto sysDbusIntf = "xyz.openbmc_project.Inventory.Item.System";
+constexpr auto sysDbusProp = "Identifier";
 
 using Timer = sdeventplus::utility::Timer<sdeventplus::ClockId::Monotonic>;