Only initialize ex_data if not already

ENGINE_by_id will load up multiple copies of the engine which will
create a new ex_data index each time it's called. This change makes sure
the ex_data index is only initialized once.

Change-Id: I5e197faf6273ec3b3cafcbeadf7da8ec04a4f50b
1 file changed
tree: 61e0cc4f97345390a8c238f844d59b6a84185c69
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/