build : provide extra properties yaml as config

Make it possible for the openpower-vpd-parser recipe to be able to
supply the extra properties YAML as configurable input.

Use extra-properties-example.yaml as input.

Change-Id: I0f975fb9d5da2368a915ba969ebffe96010d4fe8
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
2 files changed