Camera: Clarify interaction between aeTargetFpsRange and minDuration am: 60d00de58e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/24867909

Change-Id: I9ab1f01002fdcfb1e61ed04d4720bc65c5f37e32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>