Move uidPermissionMap dump to BpfNetMaps

Also remove the dump of mPrivilegedUser because this is not used now and
the information is duplicated with uidPermissionMap dump.

Before this CL
....
mUidPermissionMap:
10049 PERMISSION_NONE
10027  BPF_PERMISSION_INTERNET BPF_PERMISSION_UPDATE_DEVICE_STATS
1041  BPF_PERMISSION_UPDATE_DEVICE_STATS
....

After this CL
....
sUidPermissionMap:
  10049 PERMISSION_NONE
  10027 PERMISSION_INTERNET PERMISSION_UPDATE_DEVICE_STATS
  1041 PERMISSION_UPDATE_DEVICE_STATS
....

Bug: 217624062
Test: dumpsys connectivity trafficcontroller, atest BpfNetMapsTest
Change-Id: I416501d5a28a5443f954f9c8c58ea255e5cdc897