Camera: Fix FD leak am: 0765e02674

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/24040326

Change-Id: I8b40bccb07d9da05c4c223119910e688e4bb9beb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>