[Keyboard] Change cKeys Washington keyboard to use atmel-dfu bootloader (#7756)

keyboards/ckeys/washington/rules.mk

@@ -9,7 +9,7 @@ MCU = atmega32u4
 #   QMK DFU      qmk-dfu
 #   ATmega32A    bootloadHID
 #   ATmega328P   USBasp
-BOOTLOADER = caterina
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
@@ -31,4 +31,4 @@ AUDIO_ENABLE = no           # Audio output on port C6
 FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
 HD44780_ENABLE = no         # Enable support for HD44780 based LCDs
 ENCODER_ENABLE = yes        # Enable support for encoders
-OLED_DRIVER_ENABLE = yes    # Enable support for OLED displays
+OLED_DRIVER_ENABLE = yes    # Enable support for OLED displays