Merge "PiP: Disable enterSplit for now." into sc-v2-dev am: b80e7c46da am: 6c5c7f6fb8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16458641

Change-Id: Iad546b3ae5d1e9363e99caa3661f5f7044d9d415