[][Add TRNG DTS node]

[Description]
Add TRNG node in DTSI for MT7986 IAP and REBB.

[Release-log]
N/A

Change-Id: I0e686ceb57f7ca558bba94a7271ff7b59ec2e76d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4678036
2 files changed