Merge "Set $TMPDIR as well as java.io.tmpdir." am: 1353c41379 am: 76aa934468 am: 522439015a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1821337

Change-Id: I9fc35b7f44f00bed5d31b02ecb6ebb9164a2651c