[][SBC][MT7988][Add target device for secure boot]

[Description]
Add target device for secure boot
mediatek_mt7988a-gsw-10g-spim-nand-sb

[Release-log]
N/A

Change-Id: Ie4171a1719713f90a5c801edbf7fdf0a3ab3f44b
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6688065
Build: srv_hbgsm110
1 file changed