[automerger skipped] Create root directory for supplemental data during user creation am: a6f36ae8d0 am: 17eca61449 am: 967c2dcc59 -s ours

am skip reason: Merged-In I66ef7a7241c9f82cecedaeb6c9a91f127668300a with SHA-1 0cf90d7ca0 is already in history

Original change: https://android-review.googlesource.com/c/platform/system/vold/+/2005651

Change-Id: I2d5101836a9c9d1e891cdd85597be74b2092b983