[IBM QE-Z] Verify Bug OADP-1056 - DPA fails validation if multiple BSLs have same provider

Description of problem:

We currently have validation which prevents a user from creating a DPA that has multiple BSLs who use the same provider. The history behind this was to prevent conflicts with the internal image backup/restore workflow when we deployed a registry deployment along with velero. With this functionality changed in 1.1, we can likely remove this validation as long as both BSLs aren't set as default.

Version-Release number of selected component (if applicable):

1.1.0

How reproducible:

100%

Steps to Reproduce:
1. Create DPA with 2 `storageLocations` that both have provider `aws`. One should have `default: true` and the other `default: false`

Actual results:

```

status:
  conditions:
    - lastTransitionTime: '2022-11-23T11:33:05Z'
      message: 'more than one backupstoragelocations configured for provider aws '
      reason: Error
      status: 'False'
      type: Reconciled
```

Expected results:

Should pass validation

Additional info: