Volume dialog controller: make loading of stream names more robust

The loading of the stream type volume names assumes there are
  as many read as declared stream types. Verify this is the
  case, if not, complete the array of names with empty strings,
  or remove unneeded entries.

Test: boot in non en-US language
Bug: 33260083

Change-Id: I6632eadd34c4b8af2c8fd01ae7eae45fc513b3e1