Define sepolicy for ro.product.vndk.version

Define a new property_context vndk_prop for ro.product.vndk.version.
It is set by init process but public to all modules.

Bug: 144534640
Test: check if ro.product.vndk.version is set correctly.
Change-Id: If739d4e25de93d9ed2ee2520408e07a8c87d46fe
7 files changed