add common mm_logd sepolicy to allow write data

This CL allows mm_logd access several stat from /proc and
/proc/<pid>/stat and write them to /data/vendor/mm/

Bug: 151100384
Test: boot
Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: I5b74798b5297d5e6be86cd8c1c9421ad0bb6915a
3 files changed