server: fix upper to lowercase for query/usage

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: yadvr

server/src/main/java/com/cloud/server/ManagementServerImpl.java

@@ -4684,7 +4684,7 @@ public Map<String, Object> listCapabilities(final ListCapabilitiesCmd cmd) {
 
         final long diskOffMinSize = VolumeOrchestrationService.CustomDiskOfferingMinSize.value();
         final long diskOffMaxSize = VolumeOrchestrationService.CustomDiskOfferingMaxSize.value();
-        KVMSnapshotEnabled = Boolean.parseBoolean(_configDao.getValue("KVM.snapshot.enabled"));
+        KVMSnapshotEnabled = Boolean.parseBoolean(_configDao.getValue("kvm.snapshot.enabled"));
 
         final boolean userPublicTemplateEnabled = TemplateManager.AllowPublicUserTemplates.valueIn(caller.getId());