[Keyboard] Fix BT rules for dosa40rgb (#14497)

keyboards/dtisaac/dosa40rgb/rules.mk

@@ -20,7 +20,8 @@ BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
-BLUETOOTH = AdafruitBLE     # Enable Bluetooth
+BLUETOOTH_ENABLE = yes      # Enable Bluetooth
+BLUETOOTH_DRIVER = AdafruitBLE
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = WS2812