Merge "libfstab: Unexport InRecovery()" into main am: f6dc8ee31e am: ea70c490fa am: 5bdea0d302 am: 37a5342b1e

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

Change-Id: I1b0b69bc8a5e36852def396c00cfb15bcf18786b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>