upgrade: consider multiple hypervisors and secondary storages

This fixes an issue during upgrade in edge case.

Steps to reproduce the issue
- deploy an env with ACS 4.18
- the env has multiple hypervisors: KVM and VMware
- the env has multiple secondary storages: sec1 and sec2
- register the new 4.19.1 systemvm template for VMware (systemvm-vmware-4.19.1), but mistakely as a private template.
- the systemvm template is downloaded to sec2 (not sec1). If it is downloaded to sec1, remove it and re-register the template.
- backup the cloudstack databases by `mysqldump -R cloud` and `mysqldump -R cloud_usage`
- install ACS 4.19.1.2 and start mgmt server

Without this PR, got an NPE during mgmt server start
```
2024-10-29 12:46:53,904 ERROR [c.c.u.SystemVmTemplateRegistration] (main:null) (logid:) Failed to register template for hypervisor: VMware
java.lang.NullPointerException
        at com.cloud.upgrade.SystemVmTemplateRegistration.updateTemplateDetails(SystemVmTemplateRegistration.java:519)
        at com.cloud.upgrade.SystemVmTemplateRegistration.performTemplateRegistrationOperations(SystemVmTemplateRegistration.java:640)
        at com.cloud.upgrade.SystemVmTemplateRegistration.registerTemplate(SystemVmTemplateRegistration.java:650)
        at com.cloud.upgrade.SystemVmTemplateRegistration$4.doInTransactionWithoutResult(SystemVmTemplateRegistration.java:789)
        at com.cloud.utils.db.TransactionCallbackNoReturn.doInTransaction(TransactionCallbackNoReturn.java:25)
```

engine/schema/src/main/java/com/cloud/upgrade/SystemVmTemplateRegistration.java

@@ -794,11 +794,14 @@ public void doInTransactionWithoutResult(final TransactionStatus status) {
                                     Long templateId = getRegisteredTemplateId(hypervisorAndTemplateName);
                                     if (templateId != null) {
                                         VMTemplateVO templateVO = vmTemplateDao.findById(templateId);
-                                        TemplateDataStoreVO templateDataStoreVO = templateDataStoreDao.findByTemplate(templateId, DataStoreRole.Image);
-                                        String installPath = templateDataStoreVO.getInstallPath();
-                                        if (validateIfSeeded(storeUrlAndId.first(), installPath, nfsVersion)) {
-                                            continue;
-                                        } else if (templateVO != null) {
+                                        TemplateDataStoreVO templateDataStoreVO = templateDataStoreDao.findByStoreTemplate(storeUrlAndId.second(), templateId);
+                                        if (templateDataStoreVO != null) {
+                                            String installPath = templateDataStoreVO.getInstallPath();
+                                            if (validateIfSeeded(storeUrlAndId.first(), installPath, nfsVersion)) {
+                                                continue;
+                                            }
+                                        }
+                                        if (templateVO != null) {
                                             registerTemplate(hypervisorAndTemplateName, storeUrlAndId, templateVO, templateDataStoreVO, filePath);
                                             continue;
                                         }

server/src/main/java/com/cloud/storage/StorageManagerImpl.java

@@ -3441,7 +3441,7 @@ public void doInTransactionWithoutResult(final TransactionStatus status) {
                                     TemplateDataStoreVO templateVO = null;
                                     if (templateId != null) {
                                         vmTemplateVO = _templateDao.findById(templateId);
-                                        templateVO = _templateStoreDao.findByTemplate(templateId, DataStoreRole.Image);
+                                        templateVO = _templateStoreDao.findByStoreTemplate(store.getId(), templateId);
                                         if (templateVO != null) {
                                             try {
                                                 if (SystemVmTemplateRegistration.validateIfSeeded(