bootanalyze: handle all valid fs_stat properly

- Any bits in 0x17 are valid. Capture bugreport for bits outside them.

bug: 32246772
Test: python packages/services/Car/tools/bootanalyze/bootanalyze.py -r -c packages/services/Car/tools/bootanalyze/config.yaml -n 10 -f -e 16 -w 30 -m WaitForDisplay=1000
Change-Id: I379b7c0d202bdfb094bc16353901e4884c1bb264
1 file changed