use s_max_mnt_count to detect mke2fs generated partition

- Old tool will set it to 10 while mke2fs will set it to -1.
- For now, only tag it.
- TODO: possibly add different policy per image tool version.

bug: 32246772
Test: check dmesg after reboot
Change-Id: Ib763f8ba64957412d2b02a9d6e3fc2bfcf55851e
1 file changed