[VCN19] Rename get/setSubIds to get/setSubscriptionIds

Test: atest FrameworksNetTests FrameworksVcnTests
Fix: 185215036
Merged-In: I9d90df5fc13b36d2cdc4920b456dcc87fcd2b3a7
Change-Id: I9d90df5fc13b36d2cdc4920b456dcc87fcd2b3a7
  (cherry-picked from ag/14198665)
10 files changed