Change dump priority for meminfo

- change meminfo dump priority to HIGH (temp workaround until parallel dump is implemented)
- pass in -a args to meminfo dump

Bug: 27429130
Test: Manual verification
Test: https://docs.google.com/a/google.com/spreadsheets/d/1tbTWM7DD2nJd-3F1kMYZRiCFOUOnhhXOEk51SmJg9-A/edit?usp=sharing

Change-Id: I069e814049efe6bb9acba7e9c1889ffd789d287b