Testing Sweep2Wake for codina

Signed-off-by: zwliew <zhaoweiliew@gmail.com>
mm: backport vnswap, frontswap and zswap to LK 3.0

I also fixed an error in backporting random.

Change-Id: I757bf25ef1f87dc9ceda67b85c9210be48569794
Signed-off-by: zwliew <zhaoweiliew@gmail.com>