[automerger skipped] Merge "Use sdk_version: none for platform stubs" into rvc-dev am: a31590bb4a -s ours am: 2b60bf67af -s ours am: 122ca0a80f -s ours

am skip reason: Change-Id I5f1b01875b0073f942c692882db157a8c5788ce0 with SHA-1 fbd32f3274 is in history

Change-Id: Ic593d588e82d796354306c6f127fda7bb4f619fc