Clean up trailing whitespace

Marlin/src/HAL/HAL_AVR/HAL.h

Marlin/src/lcd/language/language_pl.h

Marlin/src/pins/stm32/pins_BIGTREE_SKR_PRO_V1.1.h

config/examples/SCARA/Configuration_adv.h

...ig/examples/STM32/Black_STM32F407VET6/Configuration_adv.h

config/examples/Tevo/Michelangelo/Configuration_adv.h

config/examples/Tevo/Tarantula Pro/Configuration_adv.h

...g/examples/Tevo/Tornado/V1 (MKS Base)/Configuration_adv.h

.../examples/Tevo/Tornado/V2 (MKS GEN-L)/Configuration_adv.h

config/examples/TheBorg/Configuration_adv.h

config/examples/TinyBoy2/Configuration_adv.h

config/examples/Tronxy/X3A/Configuration_adv.h

config/examples/Tronxy/X5S-2E/Configuration_adv.h

config/examples/UltiMachine/Archim1/Configuration_adv.h

config/examples/UltiMachine/Archim2/Configuration_adv.h

config/examples/VORONDesign/Configuration_adv.h

config/examples/Velleman/K8200/Configuration_adv.h

config/examples/Velleman/K8400/Dual-head/Configuration_adv.h

...g/examples/Velleman/K8400/Single-head/Configuration_adv.h

config/examples/WASP/PowerWASP/Configuration_adv.h