test/evp_extra_test.c: Add check for BIO_new()

test/evp_extra_test.c: Add check for BIO_new()

Add check for the return value of BIO_new() to avoid NULL pointer dereference.

Fixes: fd19fc4c27 ("Test that a key is usable after an EVP_PKEY_fromdata call")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Frederik Wedel-Heinen <fwh.openssl@gmail.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27994)