perfprofd: add env to disable change of perf_event_paranoid.

This is to avoid a cts test failure (which checks the value of
perf_event_paranoid) while perfprofd is running.

Bug: 111855759
Test: run perfprofd_test and perf_event_paranoid isn't changed.
Change-Id: Ifa610a21b560d0eb536cb76914b116bd1e769634
2 files changed