Add a note on Configure variable processing in NEWS and CHANGES

Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5177)

CHANGES

@@ -9,6 +9,9 @@
 
  Changes between 1.1.0f and 1.1.1 [xx XXX xxxx]
 
+  *) Added processing of "make variables" to Configure.
+     [Richard Levitte]
+
   *) Added SHA512/224 and SHA512/256 algorithm support.
      [Paul Dale]
 

NEWS

@@ -7,7 +7,7 @@
 
   Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.1 [under development]
 
-      o 
+      o Allow GNU style "make variables" to be used with Configure.
       o Add a STORE module (OSSL_STORE)
       o Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes