[Sim] Update knownfailures.json

Many known test failures that previously required investigation are
now passing due to the various changes to the ART simulator and
restricted mode, e.g: C++ entrypoint enablement and compilation/
simulation of more ART methods. Remove these tests that now pass
from knownfailures.json.

Also move tests that pass on restricted mode but fail on the
simulator into the correct section in knownfailures.json.

Authors: Chris Jones <christopher.jones@arm.com>
         Artem Serov <artem.serov@arm.com>

Flag: build.ART_USE_SIMULATOR
Test: Follow instructions in README.simulator.md
Test: ./test.py --host --target --simulator
Test: ART_USE_RESTRICTED_MODE=true; test.py --target --64
Cherrypick-From: https://partner-android-review.googlesource.com/q/commit:65aa93f99541268d3e23416f2835d29595c16190
Change-Id: I68f6e7111b522d2d587ee804b88a079afc88cef0