Modify user / group id for HCI logging

Modify user / group id for HCI logging

[Model] COMMON
[BinType] AP
[Customer] OPEN

[Issue#] N/A
[Request] Internal
[Occurrence Version] N/A

[Problem] Invalid user was used for HCI logging
[Cause & Measure] As per security team guide, network_fw is used as uid
and gid for HCI logging
[Checking Method] Check UID of btmon / hcidump process

[Team] Basic connection
[Developer] Seungyoun Ju
[Solution company] Samsung
[Change Type] Specification change

Change-Id: I6aee61f3b1ea4a73ebf752ddd802876c13416dae