trusty: ignore deprecation errors

The openssl APIs used by trusty are deprecated from vesion 3 of
openssl. Let's ignore those errors until older APIs are replaced
with newer APIs in trusty.

Signed-off-by: Davidson K <davidson.kumaresan@arm.com>
Change-Id: I3a8d612a02e9cc8a52d3d64124edaf3975881a8c