BUILD: Makefile: add USE_QUIC_OPENSSL_COMPAT to make help

Add the missing USE_QUIC_OPENSSL_COMPAT option to `make help`.

No backport needed.

(cherry picked from commit 17bfc75974a8660c43efe71dd80f5351bcf6e341)
Signed-off-by: William Lallemand <wlallemand@haproxy.org>
1 file changed