Merge "Zero-length packet send bug resolution for fastboot." am: 46134b9cae

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2364908

Change-Id: I494ac9a4dcb5104670a211e339cda5903e1b4002
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>