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/cc3200/boards/WIPY/board.json

@@ -5,11 +5,10 @@
     "docs": "https://docs.pycom.io/datasheets/development/wipy3/",
     "features": [
         "BLE",
-        "Breadboard Friendly",
-        "MicroSD",
+        "External Flash",
         "RGB LED",
-        "SPI Flash",
-        "WiFi"
+        "WiFi",
+        "microSD"
     ],
     "id": "wipy",
     "images": [