It's all dma_buf memory leaks that cause watchdog to be in D state

for a long time and trigger natvie hang. A large amount of memory enters
the D state due to allocation of memory. Contains watchdog task.
lowmemorykiller: Kill 'com.android.launcher3' lead to memory leak.

Bug: 304887963
Test: kill launcher at the right time.
Change-Id: I37badf705bd2fb62352c134e7c91999ea7ad498a