Some rework for the pull request

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-mgmt-api/src/main/java/org/eclipse/hawkbit/mgmt/rest/api/MgmtSystemRestApi.java

@@ -85,4 +85,4 @@ public interface MgmtSystemRestApi {
             @PathVariable("keyName") final String keyName,
             @RequestBody final MgmtSystemTenantConfigurationValueRequest configurationValueRest);
 
-}
+}

hawkbit-mgmt-api/src/main/java/org/eclipse/hawkbit/mgmt/rest/api/MgmtTargetRestApi.java

@@ -260,4 +260,4 @@ public interface MgmtTargetRestApi {
             MediaType.APPLICATION_JSON_VALUE })
     ResponseEntity<MgmtDistributionSet> getInstalledDistributionSet(@PathVariable("targetId") final String targetId);
 
-}
+}