Support ISL68137 device in PSUSensor

Add the isl68137 driver, ISL68137 configuration, to whitelist
Following the model of the existing capitalization syntax
Now merged to be up to date against latest master

Tested: Works for me using isl68137 driver with PSUsensor

Change-Id: Ic4fe45d632e102ce01a550b6ff64b2917edaa730
Signed-off-by: Josh Lehan <krellan@google.com>
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index e364a24..41fc21c 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+
 #include <PSUEvent.hpp>
 #include <PSUSensor.hpp>
 #include <Utils.hpp>
@@ -26,12 +27,14 @@
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
 
-static constexpr std::array<const char*, 2> sensorTypes = {
+static constexpr std::array<const char*, 3> sensorTypes = {
     "xyz.openbmc_project.Configuration.pmbus",
-    "xyz.openbmc_project.Configuration.MAX34451"};
+    "xyz.openbmc_project.Configuration.MAX34451",
+    "xyz.openbmc_project.Configuration.ISL68137"};
 
-static std::vector<std::string> pmbusNames = {"pmbus", "pxe1610", "ina219",
-                                              "ina230", "max34451"};
+static std::vector<std::string> pmbusNames = {"pmbus",  "pxe1610",  "ina219",
+                                              "ina230", "max34451", "isl68137"};
+
 namespace fs = std::filesystem;
 
 static boost::container::flat_map<std::string, std::unique_ptr<PSUSensor>>