[automerger skipped] Ueventd: Fix a corner case in ReadUevent() that triggers...

[automerger skipped] Ueventd: Fix a corner case in ReadUevent() that triggers duplicate firmware loading. am: eb568b55 -s ours

am skip reason: Change-Id I09e80052337fd1495b968dc02ecff5ceb683da18 with SHA-1 a86bf05a is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/12219280

Change-Id: I02d0eba18f64f2a8f0fb91e84e0182901395e808