bootanalyze: add ro.boottime.* to collection

- ro.boottime.init.*: time taken for the step
- other ro.boottime.*: time for the step

bug: 33210752
Test: python packages/services/Car/tools/bootanalyze/bootanalyze.py -r -c packages/services/Car/tools/bootanalyze/config.yaml -n 10
Change-Id: I452daa1edd06d21e1754266f7dc9c86dad3f423d
1 file changed