Move upgradeUserTypesLU code

No functional change. Just moving the upgradeUserTypesLU
code to a more logical place in the file, per
ag/c/platform/frameworks/base/+/12745203/7..11/services/core/java/com/android/server/pm/UserManagerService.java#b5611

Bug: 168589581
Test: treehugger (no change made here)
Change-Id: I03ebc608ecd21d2fd3a575a7466c082b3189bfeb
1 file changed