Convert Neponset to use the gpiod API to specify which GPIOs are used
for PCMCIA, and use the MAX1600 power switch library for Neponset,
simplifying the neponset pcmcia driver as a result.
Acked-by: NDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>