ports: Simplify board feature tags in board.json.

This commit:
- Finds a common set of board feature tags and maps existing features to
  that reduced set.
- Removes some less-useful board feature tags.
- Ensures all MCUs are specified correctly.
- Ensures all boards have a vendor (and fixes some vendor names).

This is to make the downloads page show a less intimidating set of filters.

Work done in conjunction with Matt Trentini <matt.trentini@gmail.com>.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

ports/nrf/boards/arduino_nano_33_ble_sense/board.json

@@ -4,15 +4,12 @@
     ],
     "docs": "",
     "features": [
-        "Bluetooth 5.0",
-        "IMU LSM9DS1",
-        "Humidity sensor HTS221",
-        "Pressure sensor LPS22H",
-        "Proximity, Light, RGB sensor APDS-9960",
-        "Microphone MPM3610",
-        "Crypto IC ARM CC310",
-        "USB-MICRO",
-        "Breadboard Friendly"
+        "BLE",
+        "Environment Sensor",
+        "IMU",
+        "Microphone",
+        "Secure Element",
+        "USB"
     ],
     "images": [
         "ABX00031_01.iso_998x749.jpg"

ports/nrf/boards/arduino_primo/board.json

@@ -11,5 +11,5 @@
     "product": "arduino_primo",
     "thumbnail": "",
     "url": "",
-    "vendor": ""
+    "vendor": "Arduino"
 }

ports/nrf/boards/nrf52840-mdk-usb-dongle/board.json

@@ -11,5 +11,5 @@
     "product": "nrf52840-mdk-usb-dongle",
     "thumbnail": "",
     "url": "https://wiki.makerdiary.com/nrf52840-mdk-usb-dongle",
-    "vendor": ""
+    "vendor": "Makerdiary"
 }

ports/nrf/boards/seeed_xiao_nrf52/board.json

@@ -4,14 +4,13 @@
     ],
     "docs": "",
     "features": [
-        "Bluetooth 5.0",
-        "IMU LSM6DS3TR",
-        "Microphone MSM261D3526H1CPM",
-        "USB-C",
-        "Breadboard Friendly",
-        "Battery Management",
+        "BLE",
+        "Battery Charging",
+        "External Flash",
+        "IMU",
+        "Microphone",
         "RGB LED",
-        "QSPI Flash"
+        "USB-C"
     ],
     "images": [
         "XIAO_nrf52840_front.jpg"