git: openjdk/jdk17u: 8286601: Mac Aarch: Excessive warnings to be ignored for build jdk

[Andrew John Hughes]

Changeset: 461fb320
Author:    Adam Farley <afarley at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-05-23 21:07:48 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/461fb320bc67de9e8f378b8a845f67764cd003ed

8286601: Mac Aarch: Excessive warnings to be ignored for build jdk

Reviewed-by: andrew
Backport-of: 40f43c6b1ffc88d55dd3223f5d0259ae73cf0356

! make/autoconf/flags-cflags.m4