Add ro.vendor.build.version.sdk to property_contexts am: 15f64fc5f8 am: 38e0d2c778 am: a93831de1c

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/sepolicy/+/12326247

Change-Id: I063a96c8571acc051e3e66e8c6851fa4a186e7e0