Various renames following the name change from "Runtime APEX" to "ART APEX".

In particular ANDROID_RUNTIME_ROOT is now ANDROID_ART_ROOT.

Test: Build & boot
Test: art/tools/run-gtests.sh in chroot
Test: art/test/testrunner/testrunner.py --target --64 in chroot
Test: art/tools/run-libcore-tests.sh --mode=device --variant=X64 in chroot
Test: art/tools/run-jdwp-tests.sh --mode=device --variant=X64 in chroot
Test: m test-art-host-gtest
Test: art/test/testrunner/testrunner.py --host --64
Test: art/tools/run-jdwp-tests.sh --mode=host
Bug: 135753770
Change-Id: Ia74da964e54cf396d66e9e12ea56da4e9483662a
34 files changed