Merge "libfstab: Unexport InRecovery()" into main am: f6dc8ee31e am: ea70c490fa

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2682015

Change-Id: Ie5146dae22e2bf6a0867c483cb07b62e5d7278ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>