src/osfv/models: add my apu3 homelab model

[pietrushnic]

Tested in my homelab with additional debug logs:

% osfv_cli rte --skip-snipeit --model=APU3-pk-homelab --rte_ip 192.168.2.71 flash probe
DUT model retrieved from cmdline, skipping Snipe-IT query
Probing flash...
gpio_set: 0 to high
gpio_get: 0 is high
gpio_set: 9 to low
gpio_set: 2 to low
gpio_set: 3 to low
gpio_set: 1 to low
Executing command: flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=16000 -c W25Q64JV-.Q
flashrom v1.3.0 on Linux 5.4.69 (armv7l)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found Winbond flash chip "W25Q64JV-.Q" (8192 kB, SPI) on linux_spi.
===
This flash part has status UNTESTED for operations: WP
The test status of this chip may have been updated in the latest development
version of flashrom. If you are running the latest development version,
please email a report to [email protected] if any of the above operations
work correctly for you with this flash chip. Please include the flashrom log
file for all operations you tested (see the man page for details), and mention
which mainboard or programmer you tested in the subject line.
Thanks for your help!
No operations were specified.
gpio_set: 3 to high-z
gpio_set: 1 to high-z