gpio: Initialize the irqchip valid_mask with a callback

After changing the valid_mask for the struct gpio_chip
to detect the need and presence of a valid mask with the
presence of a .init_valid_mask() callback to fill it in,
we augment the gpio_irq_chip to use the same logic.

Switch all driver using the gpio_irq_chio valid_mask
over to this new method.

This makes sure the valid_mask for the gpio_irq_chip gets
filled in when we add the gpio_chip, which makes it a
little easier to switch over drivers using the old
way of setting up gpio_irq_chip over to the new method
of passing the gpio_irq_chip along with the gpio_chip.
(See drivers/gpio/TODO for details.)

Cc: Joel Stanley <[email protected]>
Cc: Thierry Reding <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Tested-by: Hans de Goede <[email protected]>
Reviewed-by: Andrew Jeffery <[email protected]>
Acked-by: Mika Westerberg <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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