Orange PI Zero2 and FreeBSD 13.2

The only difference between the H618 and the H616 is that the former has a higher CPU clock speed
The H616 device tree is also used in the OrangePi Zero 3 Linux image released by OrangePi.

I used both `sun50i-h616-orangepi-zero2.dtb` and `sun50i-h618-orangepi-zero3.dtb` on the OrangePi Zero3. There is almost no difference between the two; the only difference is that the output of `sysctl hw.fdt.model` and `sysctl hw.fdt.compatible` is different.

use sun50i-h616-orangepi-zero2.dtb:
Code: 
root@generic:~ # uname -a
FreeBSD generic 16.0-CURRENT FreeBSD 16.0-CURRENT #0 main-n285702-8e8d87856241: Tue May  5 10:36:17 UTC 2026     root@releng3.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
root@generic:~ # sysctl hw.fdt.model
hw.fdt.model: OrangePi Zero2
root@generic:~ # sysctl hw.fdt.compatible
hw.fdt.compatible: xunlong,orangepi-zero2 allwinner,sun50i-h616

use sun50i-h618-orangepi-zero3.dtb:
Code: 
root@generic:~ # uname -a
FreeBSD generic 16.0-CURRENT FreeBSD 16.0-CURRENT #0 main-n285702-8e8d87856241: Tue May  5 10:36:17 UTC 2026     root@releng3.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
root@generic:~ # sysctl hw.fdt.model
hw.fdt.model: OrangePi Zero3
root@generic:~ # sysctl hw.fdt.compatible
hw.fdt.compatible: xunlong,orangepi-zero3 allwinner,sun50i-h618
 
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