[automerger skipped] Update SPL to 2021-12-01 am: ec6022f2e5 am: 38b8a44db6 am: 48181f100e am: 822db71705 am: a20327484d -s ours am: 7c3acbad19 -s ours am: 54f234ae38 -s ours

am skip reason: skipped by user pscovanner

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/16009632

Change-Id: Ic586c9b2beba01f3f6b29a9ace4a0493a5132a7c