[MEP] Add port index in SubscriptionInfo database am: 286db29cf7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2046489

Change-Id: I4baac1debf4f50079a4c632aae989a04ffa0ee13
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>