`:flash`: print bootloader (#18569)

platforms/arm_atsam/flash.mk

@@ -13,6 +13,7 @@ mdloader: bin
 	$(call EXEC_MDLOADER)
 
 flash: bin
+	$(SILENT) || printf "Flashing for bootloader: $(BLUE)$(BOOTLOADER)$(NO_COLOR)\n"
 ifneq ($(strip $(PROGRAM_CMD)),)
 	$(UNSYNC_OUTPUT_CMD) && $(PROGRAM_CMD)
 else ifeq ($(strip $(ARM_ATSAM)),SAMD51J18A)

platforms/avr/flash.mk

@@ -168,7 +168,8 @@ endef
 hid_bootloader: $(BUILD_DIR)/$(TARGET).hex check-size cpfirmware
 	$(call EXEC_HID_LUFA)
 
-flash:  $(BUILD_DIR)/$(TARGET).hex check-size cpfirmware
+flash: $(BUILD_DIR)/$(TARGET).hex check-size cpfirmware
+	$(SILENT) || printf "Flashing for bootloader: $(BLUE)$(BOOTLOADER)$(NO_COLOR)\n"
 ifneq ($(strip $(PROGRAM_CMD)),)
 	$(UNSYNC_OUTPUT_CMD) && $(PROGRAM_CMD)
 else ifeq ($(strip $(BOOTLOADER)), caterina)

platforms/chibios/flash.mk

@@ -100,8 +100,8 @@ endef
 teensy: $(BUILD_DIR)/$(TARGET).hex cpfirmware sizeafter
 	$(call EXEC_TEENSY)
 
-
 flash: $(BUILD_DIR)/$(TARGET).bin cpfirmware sizeafter
+	$(SILENT) || printf "Flashing for bootloader: $(BLUE)$(BOOTLOADER)$(NO_COLOR)\n"
 ifneq ($(strip $(PROGRAM_CMD)),)
 	$(UNSYNC_OUTPUT_CMD) && $(PROGRAM_CMD)
 else ifeq ($(strip $(BOOTLOADER)),kiibohd)