Migrate MCU and BOOTLOADER to data-driven (#19529)

keyboards/skme/zeno/info.json

@@ -8,6 +8,8 @@
         "pid": "0x0001",
         "device_version": "0.0.1"
     },
+    "processor": "atmega32u4",
+    "bootloader": "atmel-dfu",
     "layouts": {
         "LAYOUT_default": {
             "layout": [{"x":0.25, "y":0}, {"x":1.25, "y":0}, {"x":2.25, "y":0}, {"x":3.25, "y":0}, {"x":4.25, "y":0}, {"x":5.25, "y":0}, {"x":6.25, "y":0}, {"x":9.25, "y":0}, {"x":10.25, "y":0}, {"x":11.25, "y":0}, {"x":12.25, "y":0}, {"x":13.25, "y":0}, {"x":14.25, "y":0}, {"x":15.25, "y":0}, {"x":16.25, "y":0}, {"x":0.25, "y":1, "w":1.5}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"x":10.75, "y":1}, {"x":11.75, "y":1}, {"x":12.75, "y":1}, {"x":13.75, "y":1}, {"x":14.75, "y":1}, {"x":15.75, "y":1, "w":1.5}, {"x":0.15, "y":2, "w":1.75}, {"x":1.9, "y":2}, {"x":2.9, "y":2}, {"x":3.9, "y":2}, {"x":4.9, "y":2}, {"x":5.9, "y":2}, {"x":9.05, "y":2}, {"x":10.05, "y":2}, {"x":11.05, "y":2}, {"x":12.05, "y":2}, {"x":13.05, "y":2}, {"x":14.05, "y":2}, {"x":15.05, "y":2, "w":2.25}, {"x":0, "y":3, "w":2.25}, {"x":2.25, "y":3}, {"x":3.25, "y":3}, {"x":4.25, "y":3}, {"x":5.25, "y":3}, {"x":6.25, "y":3}, {"x":8.55, "y":3}, {"x":9.55, "y":3}, {"x":10.55, "y":3}, {"x":11.55, "y":3}, {"x":12.55, "y":3}, {"x":13.55, "y":3}, {"x":14.55, "y":3, "w":1.75}, {"x":16.3, "y":3}, {"x":0, "y":4, "w":1.5}, {"x":1.5, "y":4}, {"x":3.5, "y":4, "w":1.5}, {"x":5, "y":4, "w":2.25}, {"x":8.55, "y":4, "w":2.75}, {"x":11.3, "y":4, "w":1.5}, {"x":15.8, "y":4, "w":1.5}]

keyboards/skme/zeno/rules.mk

@@ -1,9 +1,3 @@
-# MCU name
-MCU = atmega32u4
-
-# Bootloader selection
-BOOTLOADER = atmel-dfu
-
 # Build Options
 #   change yes to no to disable
 #