cpu/lpc1768/periph/gpio.c: fix cpp.check shiftTooManyBitsSigned
cpu/lpc1768/periph/gpio.c: fix cpp.check shiftTooManyBitsSigned

x3ro/RIOT,kYc0o/RIOT,josephnoir/RIOT,OlegHahm/RIOT,miri64/RIOT,miri64/RIOT,jasonatran/RIOT,ant9000/RIOT,yogo1212/RIOT,authmillenon/RIOT,kYc0o/RIOT,yogo1212/RIOT,ant9000/RIOT,josephnoir/RIOT,smlng/RIOT,OTAkeys/RIOT,kaspar030/RIOT,smlng/RIOT,kaspar030/RIOT,aeneby/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,yogo1212/RIOT,smlng/RIOT,aeneby/RIOT,basilfx/RIOT,basilfx/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,ant9000/RIOT,basilfx/RIOT,toonst/RIOT,kYc0o/RIOT,miri64/RIOT,jasonatran/RIOT,aeneby/RIOT,toonst/RIOT,josephnoir/RIOT,OlegHahm/RIOT,kaspar030/RIOT,kYc0o/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,yogo1212/RIOT,OTAkeys/RIOT,ant9000/RIOT,toonst/RIOT,authmillenon/RIOT,smlng/RIOT,miri64/RIOT,mtausig/RIOT,mtausig/RIOT,smlng/RIOT,mtausig/RIOT,mtausig/RIOT,toonst/RIOT,RIOT-OS/RIOT,mtausig/RIOT,authmillenon/RIOT,yogo1212/RIOT,ant9000/RIOT,RIOT-OS/RIOT,x3ro/RIOT,OTAkeys/RIOT,authmillenon/RIOT,x3ro/RIOT,RIOT-OS/RIOT,aeneby/RIOT,josephnoir/RIOT,aeneby/RIOT,x3ro/RIOT,authmillenon/RIOT,OTAkeys/RIOT,josephnoir/RIOT,kaspar030/RIOT,OlegHahm/RIOT,jasonatran/RIOT,x3ro/RIOT,basilfx/RIOT,jasonatran/RIOT,kYc0o/RIOT,toonst/RIOT,basilfx/RIOT,miri64/RIOT,OlegHahm/RIOT,kaspar030/RIOT,authmillenon/RIOT