fix uf2 bootloader condition in makefile

Author: microdev1

ports/espressif/Makefile

@@ -339,7 +339,7 @@ TARGET_SDKCONFIG = esp-idf-config/sdkconfig-$(IDF_TARGET).defaults
 ifeq ($(CIRCUITPY_ESP_FLASH_SIZE), 2MB)
 	FLASH_SDKCONFIG = esp-idf-config/sdkconfig-$(CIRCUITPY_ESP_FLASH_SIZE)-no-ota-no-uf2.defaults
 else
-UF2_BOOTLOADER ?= $(if $(filter $(IDF_TARGET),esp32s2 esp32s3),1)
+UF2_BOOTLOADER ?= $(CIRCUITPY_USB)
 ifeq ($(UF2_BOOTLOADER), 1)
 	FLASH_SDKCONFIG = esp-idf-config/sdkconfig-$(CIRCUITPY_ESP_FLASH_SIZE).defaults
 else