Merge "dumpsys: Print total DMA-BUFs exported from the DMA-BUF heaps framework" into sc-dev am: 15c4d3210a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13554581

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5ab8000caf2e0719fe24ca5a7e43f135b1990862