VMS: update the properties of symbol search
VMS: update the properties of symbol search

In this OpenSSL version, we deliver engines with lower case symbol
names.  The DSO symbol finder must be updated to allow for mixed case
symbols or it won't fine them.

Reviewed-by: Rich Salz <c04971a99e5a9ee80eaab4b1deb37e845b0bd697@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl