More silent OpenSSL build for mingw.

tools/ssl-mingw64

@@ -63,9 +63,9 @@ build_the_thing() {
         -DOPENSSL_SMALL_FOOTPRINT"
     echo "./Configure $SSL_TARGET $OPTIONS $GLOBAL_OPTIONS" && \
     ./Configure $SSL_TARGET $OPTIONS $GLOBAL_OPTIONS && \
-    make clean && \
-    make build_generated && \
-    make libcrypto.a libssl.a || exit 128
+    make -s clean && \
+    make -s build_generated && \
+    make -s libcrypto.a libssl.a || exit 128
 }
 
 for build_target in $BUILD_TARGETS