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

keyboards/handwired/prkl30/feather/rules.mk

@@ -1,12 +1,6 @@
-# MCU name
-MCU = atmega32u4
-
 # Processor frequency
 F_CPU = 8000000
 
-# Bootloader selection
-BOOTLOADER = caterina
-
 # Build Options
 #   change yes to no to disable
 #

keyboards/handwired/prkl30/info.json

@@ -8,6 +8,8 @@
         "pid": "0x0030",
         "device_version": "0.0.2"
     },
+    "processor": "atmega32u4",
+    "bootloader": "caterina",
     "layouts": {
         "LAYOUT_all": {
             "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":6, "y":0}, {"x":7, "y":0}, {"x":8, "y":0}, {"x":9, "y":0}, {"x":10, "y":0}, {"x":11, "y":0}, {"x":12, "y":0, "w":1.5}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1}, {"x":5, "y":1}, {"x":6, "y":1}, {"x":7, "y":1}, {"x":8, "y":1}, {"x":9, "y":1}, {"x":10, "y":1}, {"x":11, "y":1}, {"x":12.25, "y":1, "w":1.25, "h":2}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":4, "y":2}, {"x":5, "y":2}, {"x":6, "y":2}, {"x":7, "y":2}, {"x":8, "y":2}, {"x":9, "y":2}, {"x":10, "y":2}, {"x":11, "y":2, "w":1.25}]

keyboards/handwired/prkl30/promicro/rules.mk

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