Improve run-ravenwood-tess.sh -s

- PowerStatsTestsRavenwood and CarServiceHostUnitTest break too often, so ignore them
- Skip @LargeTest
- Disable ravenwood most verbose / debug log

Test: $ANDROID_BUILD_TOP/frameworks/base/ravenwood/scripts/run-ravenwood-tests.sh -s
Flag: EXEMPT host test change only
Bug: 292141694
Change-Id: Ib445f911e38b1492b0722e8ac3dbdee713f2fa30