Revert "ANDROID: Incremental fs: Change per UID timeouts to microseconds"

This reverts commit c18f2a95.

Set incfs back to rvc shipping incfs

Bug: 178509184
Test: incfs_test passes
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I9e62d66e47d76c619c1d3f4a4c2449d35300f3db