Since v2.12, TF-A automatically selects the no-warn-rwx-segments option if
needed.
So move this hack to the package Makefiles.
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://github.com/openwrt/openwrt/pull/17243
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>