A single SERIAL_ECHO macro type (#12557)

Marlin/src/HAL/HAL_AVR/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_AVR/pinsDebug.h

Marlin/src/HAL/HAL_AVR/watchdog_AVR.cpp

Marlin/src/HAL/HAL_DUE/EepromEmulation_Due.cpp

Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_DUE/pinsDebug.h

Marlin/src/HAL/HAL_DUE/usb/sd_mmc_spi_mem.cpp

Marlin/src/HAL/HAL_LPC1768/persistent_store_sdcard.cpp

Marlin/src/HAL/HAL_STM32/persistent_store_impl.cpp

Marlin/src/HAL/HAL_STM32F4/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_STM32F7/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_TEENSY31_32/persistent_store_impl.cpp

Marlin/src/HAL/HAL_TEENSY35_36/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_TEENSY35_36/persistent_store_impl.cpp

Marlin/src/HAL/HAL_TEENSY35_36/pinsDebug.h

Marlin/src/HAL/shared/backtrace/backtrace.cpp

Marlin/src/Marlin.cpp

Marlin/src/core/serial.cpp

Marlin/src/core/serial.h

Marlin/src/feature/I2CPositionEncoder.cpp