You will not be able to do a full catalog restore. The EMM database gets converted during the upgrade.
Rather use the procedure described in this TechNote:
http://seer.entsupport.symantec.com/docs/337969.htm
Using catalog backup and recovery to transfer NetBackup catalogs between Windows master servers as part of a hardware refresh
http://seer.entsupport.symantec.com/docs/337970.htm
Using catalog backup and recovery to transfer NetBackup catalogs between UNIX or Linux master servers as part of a hardware refresh