The chip address is 32bit long but INVALID_CHIP_ADDRESS is defined as
an unsigned long.  This makes dsp_chip_to_dsp_addx() misbehaving on
64bit architectures.  Fix the INVALID_CHIP_ADDRESS definition to be
32bit.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>