Change the bios version dbus interface to align with bmcweb

bmcweb uses the software interface for bios version query in redfish,
to align with it, the settings service implements this interface,
this reference needs to be changed too

Tested:
AC cycle the system, then DC cycle the host,
BiosVersion in redfish is the correct bios version:
https://$BMCIP/redfish/v1/Systems/system

Signed-off-by: Yong Li <yong.b.li@linux.intel.com>
Change-Id: I90d66d2f6c24779b09b694204fdbb5c1434f37d4
diff --git a/include/oemcommands.hpp b/include/oemcommands.hpp
index a6ece9c..7a8e445 100644
--- a/include/oemcommands.hpp
+++ b/include/oemcommands.hpp
@@ -154,10 +154,10 @@
 
 static constexpr const uint8_t maxBIOSIDLength = 0xFF;
 static constexpr const uint8_t maxCPUNum = 4;
-static constexpr const char* biosObjPath = "/xyz/openbmc_project/bios";
-static constexpr const char* biosIntf =
-    "xyz.openbmc_project.Inventory.Item.Bios";
-static constexpr const char* biosProp = "BiosId";
+static constexpr const char* biosObjPath = "/xyz/openbmc_project/software/bios";
+static constexpr const char* biosVersionIntf =
+    "xyz.openbmc_project.Software.Version";
+static constexpr const char* biosVersionProp = "Version";
 
 static constexpr const char* powerRestoreDelayObjPath =
     "/xyz/openbmc_project/control/power_restore_delay";