Renamed SUB_ID to SUBSCRIPTION_ID

In order to be consistent with other existing APIs.

Test: Build
Bug: 146563563

Merged-In: Iac8d9abe3b011485ffe8220d94f25f99d022014b
Change-Id: Iac8d9abe3b011485ffe8220d94f25f99d022014b
(cherry picked from commit e94a7a4f)