State.Chassis: update service name

Both phosphor-state-manager and x86-power-control have code that exposes
both the Chassis and Chassis0 bus names as a backwards compatibility
when multi-chassis support was added.  Switch to the numbered bus name,
which is expected to be the non-deprecated one.

Signed-off-by: Patrick Williams <[email protected]>
Change-Id: I0aeefc5d00cfd1fbb1c53f35fc2d2f067d97f11b

Author: williamspatrick

src/Utils.hpp

@@ -123,7 +123,7 @@ const static constexpr char* property = "CurrentHostState";
 
 namespace chassis
 {
-const static constexpr char* busname = "xyz.openbmc_project.State.Chassis";
+const static constexpr char* busname = "xyz.openbmc_project.State.Chassis0";
 const static constexpr char* interface = "xyz.openbmc_project.State.Chassis";
 const static constexpr char* path = "/xyz/openbmc_project/state/chassis0";
 const static constexpr char* property = "CurrentPowerState";