add no-http

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21217)

INSTALL.md

@@ -806,6 +806,10 @@ Note that if this feature is enabled then GOST ciphersuites are only available
 if the GOST algorithms are also available through loading an externally supplied
 engine.
 
+### no-http
+
+Disable HTTP support.
+
 ### no-legacy
 
 Don't build the legacy provider.