engines/e_capi.c: accommodate recent DSA_SIG_[get|set]0 changes.
engines/e_capi.c: accommodate recent DSA_SIG_[get|set]0 changes.

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

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