Avoid issues with endianness when type is used in SSL_trace()

Avoid issues with endianness when type is used in SSL_trace()

The TLS record type is a single byte value so we can
use uint8_t for it. This allows passing its address
directly to SSL_trace() instead of converting it to
a single byte type first.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21823)