Pause watchdog monitor for incfs native lib extraction

Native library extraction potentially takes much longer time for
Incremental installations vs the regular ones: each page can
wait for up to 10s (adb) or 100ms (non-adb), adding up to the
full watchdog timeout of 1 min and triggering a reboot.

This CL pauses Watchdog for the thread that's running extraction
to make sure we don't try to fix a hanging single installation
with killing the OS.

Bug: 191166673
Fixes: 191166673
Test: atest package manager and incremental suites
Change-Id: I9c4c24f305e079f346a76b64d4841cdbd58734fa