Add a generic template include/optee-os.mk to build OP-TEE.
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://github.com/openwrt/openwrt/pull/16716
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit dedb90e8f82a179ad67b6eac3b6f8862b9183077)
Link: https://github.com/openwrt/openwrt/pull/17097
Signed-off-by: Petr Štetiar <ynezz@true.cz>
