fix a variety of uninit errors. ok and one correction deraadt

Dallas 1-Wire bus support. Includes the following drivers:

gpioow(4) 1-Wire bus bit-banging through GPIO pin
onewire(4) 1-Wire bus driver
owid(4) 1-Wire ID family type device
owtemp(4) 1-Wire tempe

Dallas 1-Wire bus support. Includes the following drivers:

gpioow(4) 1-Wire bus bit-banging through GPIO pin
onewire(4) 1-Wire bus driver
owid(4) 1-Wire ID family type device
owtemp(4) 1-Wire temperature family type device

Drivers for RS-232 and USB bus masters will follow.

ok deraadt@

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