Stricter stat when checking for blockdevices am: a63198f058 am: 1ef04a46bd am: 15546c3790 am: 4543612847 am: ef85a8ac82

Original change: https://android-review.googlesource.com/c/platform/hardware/qcom/bootctrl/+/2111984

Change-Id: I232e563e0ae9b8e4bbfe5f6d4f87ac725f8d59b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>