microchipsw: lan969x: add Novarq Tactical 1000

microchipsw: lan969x: add Novarq Tactical 1000

Novarq Tactical 1000 is a LAN9696 based switch.

Specifications:
* CPU: Microchip LAN9696 switch SoC
* DRAM: 2GB DDR4
* Storage:
	* 32MB QSPI NOR
	* 16GB eMMC
* Networking:
	* 24 x 10/100/1000 RJ45 via LAN8804 Quad PHY-s over QSGMII
	* 4 x 100/1000/2500/5000/10000 SFP+ ports
	* 1 x 10/100/1000 management RJ45 via LAN8840 PHY over RGMII (U-Boot too)
* USB: 1 x USB2.0 Type-A
* Management via USB-C (MCP2200):
	* UART @ 115200 baud (Default), 921600 possible
	* GPIO-s for bootstrap and reset
* LED-s:
	* 2 per networking port (Green and Yellow)
	* Green status LED
* Soft reset GPIO
* Power: 12V DC barrel jack
* External PoE:
	* Option for PoE add-on
* Temperature Sensors:
	* TMP1075 onboard
	* CPU temperature
* Microchip MCP79402 RTC with battery back-up
* Microchip ATECC608C secure peripheral
* CPU heatsink with PWM fan
* Onboard header for case fan

Installation instructions:

1. Connect to UART via the USB-C port
2. Connect the management port
3. Boot and interrupt U-Boot
4. TFTP the OpenWrt initramfs image and boot it
5. SCP the OpenWrt eMMC GPT image to a running OpenWrt initramfs to /tmp
openwrt-microchipsw-lan969x-novarq_tactical-1000-squashfs-emmc-gpt.img.gz

And decompress it via:
gzip -d /tmp/openwrt-microchipsw-lan969x-novarq_tactical-1000-squashfs-emmc-gpt.img.gz

6. Wipe eMMC with:
dd if=/dev/zero of=/dev/mmcblk0 bs=1M

7. Flash OpenWrt eMMC image with:
dd if=/tmp/openwrt-microchipsw-lan969x-novarq_tactical-1000-squashfs-emmc-gpt.img
of=/dev/mmcblk0

After a restart OpenWrt will boot, and then regular sysupgrade can be used
for upgrades.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>