X.509: Add bits needed for PKCS#7

PKCS#7 validation requires access to the serial number and the raw names in an
X.509 certificate.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>

diff --cc crypto/asymmetric_keys/x509.asn1
Simple merge

diff --cc crypto/asymmetric_keys/x509_cert_parser.c
Simple merge

diff --cc crypto/asymmetric_keys/x509_parser.h
Simple merge