git: openjdk/jdk17u: 8304871: Use default visibility for static library builds

[Severin Gehwolf]

Changeset: 908cab41
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-04-03 12:18:21 +0000
URL:       https://git.openjdk.org/jdk17u/commit/908cab4123812b6b206b966a6ce92398cdf42c08

8304871: Use default visibility for static library builds

Backport-of: f0dba218ac00c0c577400b4d864ba79a9938aef7

! make/autoconf/flags-cflags.m4