Rename dynamic policy data types (26510-CR0030 Rel-18)
- 26510-CR0030r4 [S4-251497] carried across from Rel-18 into Rel-19 in the same meeting cycle (SA#109).
- (cherry picked from 5G_APIs Rel-18 commit 27ecdbe91f44b3674a9e5316335762e722c1b1a1 and merge conflicts resolved)