[Tether11] Grant privileged permissions for tethering

Since tethering is moved from systemServer to networkStack
process, it would lose privileged capability. Grant privileged
permissions for tethering individually. Grant MANAGE_USB to control
usb rndis function. Grant MODIFY_PHONE_STATE to know whether DUN
is required. Grant READ_NETWORK_USAGE_HISTORY to update tethering
usage. Grant UPDATE_APP_OPS_STATS to check WRITE_SETTINGS permission.

Bug: 144320246
Test: -build, flash, boot
      -atest TetheringTests

Change-Id: Id6e71b58e027d6ba90551084367ef881652c2555