kinetis/hal_gpio.c: Fix hal_gpio_init_out, to make it set the pin to given initial value.
kinetis/hal_gpio.c: Fix hal_gpio_init_out, to make it set the pin to given initial value.

mlaz/mynewt-core,mlaz/mynewt-core,mlaz/mynewt-core,mlaz/mynewt-core,mlaz/mynewt-core