Merge "Fix spacing for preview stabilization mandatory streams docs." into...

Merge "Fix spacing for preview stabilization mandatory streams docs." into tm-qpr-dev am: 23ac6ace

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19572800



Change-Id: Ibe4864a2f0b239f0ff8d3d642dbe5da01bfb0186
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>