tree 5b3590380575040f78c82efffb2cc9c0103f3888
parent 6c7f1196eaacf45f6d50c8e7b6e65e697b139e78
author Wei Wang <wvw@google.com> 1497044532 -0700
committer Wei Wang <wvw@google.com> 1497067079 -0700

dumpstate: Dump all block device stat

We have "UPTIME MMC PERF" but it is limited to MMC and thus has
been broken for a while in recent devices.
This CL is to add dump for all block devices stat information.

Bug: 62319771
Test: adb bugreport and check the result
Change-Id: I74e0bf0c4bf40e268dffd0abb8922f0ffb5e9692