Correct the scan order in onStoreageVolumeAdded

In this bug we discovered that the iteration order of
onStorageVolumeAdded doesn't follow the order when these packages are
scanned. In this CL we record the order when onPackageAdded are called
and use this order to iterate within onStorageVolumeAdded

Bug: 282984463
Test: presubmit
Change-Id: Id8225d6a16846a7f0f19c24c4adf9de5d9b06537