Fix normalize doesn't work on carrier template

From android 12, the subscriberId is being used for different network
types. For instances:
The TYPE_WIFI with subscriberId means that it is a merged wifi network.
The TYPE_CARRIER means that the network associate to specific carrier
network (subscriberId).

So remove the check "isMatchRuleMobile" and only check whether subscriberId
is being used in NetworkTemplate or not.

Bug: 194939211
Test: atest -c NetworkTemplateTest
Change-Id: I80c9f887cf8b4714716d657da92ed273a532ce27