Cleanup DAP state before installing new OTA am: 42c2d55eb6

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2164380

Change-Id: I833e47823ffbdbeea54374b3b806f15f498e2264
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>