Without this dependency, platforms not supporting PCI (such as m68k)
report the following build warning when building allmodconfig
or allyesconfig.
drivers/watchdog/rdc321x_wdt.c: In function 'rdc321x_wdt_ioctl':
./arch/m68k/include/asm/uaccess_mm.h:61:1: warning:
'value' may be used uninitialized in this function