Activate support for long integers in the printf routine

[Konamiman]

Support for printing long integers in printf.c was disabled, this caused the "Test device access" tool in FDISK to display "Now reading device sector u" instead of the actual sector number.

Additionally, printing long numbers wasn't properly implemented in printf.c. That's also fixed.

[gnogni]

Hi Konamiman, please remember to also add the %lu to line 1248 of [ fdisk.c ]:

sprintf(buffer + strlen(errorMessageHeader), "%lu", sectorNumber);

Thank you. ;-D

[Konamiman]

@gnogni Good catch, thank you!