Read VSR level from correct property.

Bug: 235424890
Test: VtsHalKeymasterV4_0TargetTest & VtsAidlKeyMintTargetTest
Ignore-AOSP-First: Cherry-pick of aosp/2128833
Change-Id: I39109c097d129124097a303c3f108d015cb367e3
Merged-In: I39109c097d129124097a303c3f108d015cb367e3
2 files changed