gpio/pinctrl: make gpio_chip members typed boolean

This switches the two members of struct gpio_chip that were
defined as unsigned foo:1 to bool, because that is indeed what
they are. Switch all users in the gpio and pinctrl subsystems
to assign these values with true/false instead of 0/1. The
users outside these subsystems will survive since true/false
is 1/0, atleast we set some kind of more strict typing example.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-lynxpoint.c

@@ -391,7 +391,7 @@ static int lp_gpio_probe(struct platform_device *pdev)
 	gc->set = lp_gpio_set;
 	gc->base = -1;
 	gc->ngpio = LP_NUM_GPIO;
-	gc->can_sleep = 0;
+	gc->can_sleep = false;
 	gc->dev = dev;
 
 	/* set up interrupts  */