allow swappiness change

For using swap aggressively, we want to change /proc/sys/vm/swappiness.
This CL allows it by selinux part change of wahoo.

Bug: 117522738
Test: confirmed swappiness was changed by modifying that vendor init script
write /proc/sys/vm/swappiness other value.
Signed-off-by: Minchan Kim <minchan@google.com>

Change-Id: I71e2848ac7288b3b5c504e0113a860a5e11d4f19
3 files changed