Retrieve User Information API changes

The Retrieve User Information API will now return 8-byte storage values.

The Retrieve User Information (QSYRUSRI) API, format USRI0300, will now return larger 8-byte storage values for maximum storage allowed, storage used, IASP maximum storage allowed, and IASP storage used. The 4-byte storage values will still contain valid information until the value exceeds 2,147,483,647, then the 4-byte storage value will be -2.