Standardize some hexadecimals

Marlin/src/HAL/HAL_DUE/HAL_spi_Due.cpp

Marlin/src/HAL/HAL_DUE/u8g_com_HAL_DUE_st7920_sw_spi.cpp

Marlin/src/HAL/HAL_DUE/usb/pll.h

Marlin/src/HAL/HAL_DUE/usb/spc_protocol.h

Marlin/src/HAL/HAL_DUE/usb/udc.c

Marlin/src/HAL/HAL_DUE/usb/usb_protocol.h

Marlin/src/HAL/HAL_DUE/usb/usb_task.c

Marlin/src/HAL/HAL_LPC1768/HAL.cpp

Marlin/src/HAL/HAL_LPC1768/HAL_spi.cpp

Marlin/src/HAL/HAL_LPC1768/LPC1768_PWM.cpp

...in/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp

...68/u8g_com_HAL_LPC1768_ssd_sw_i2c.cpp under construction

...src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp

...src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp

Marlin/src/HAL/HAL_STM32F7/TMC2660.cpp

Marlin/src/backtrace/unwarm.cpp

Marlin/src/backtrace/unwarm.h

Marlin/src/backtrace/unwarm_thumb.cpp

Marlin/src/backtrace/unwarmbytab.cpp

Marlin/src/backtrace/unwarmmem.cpp