Merge "Updates the FB_COMMAND_SIZE from 64 to the linux max value of 4096 and...

Merge "Updates the FB_COMMAND_SIZE from 64 to the linux max value of 4096 and updates the relevant unit tests." am: a67092a7 am: c8820b27 am: 5379b4fc am: a9460a38

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2214970



Change-Id: Iae3e6d7b8d7cbc4d8944620c816252859589e0ba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>