Install psutil required by tools/mlock_report.py script

'tools/mlock_report.py' script requires 'psutil' package to be
installed. This ensures it is done before memory_peak service is
started.

Partial-Bug: #1860753
Change-Id: I7b2b6eaf9856c6057e1a4a0054d15074150a6cb6
2 files changed