pinctrl: Add some depends on HAS_IOMEM

Some compilation fallout from UM Linux (which does not have
IOMEM) makes it necessary to depend on HAS_IOMEM for drivers
that doesn't have other factors restricting their selection.

Cc: Phil Reid <preid@electromag.com.au>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reported-by: R. Daneel Olivaw <kbuild-all@01.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/Kconfig

@@ -98,6 +98,7 @@ config PINCTRL_AT91PIO4
 
 config PINCTRL_AMD
 	tristate "AMD GPIO pin control"
+	depends on HAS_IOMEM
 	select GPIOLIB
 	select GPIOLIB_IRQCHIP
 	select PINCONF
@@ -201,6 +202,7 @@ config PINCTRL_RZA1
 config PINCTRL_SINGLE
 	tristate "One-register-per-pin type device tree based pinctrl driver"
 	depends on OF
+	depends on HAS_IOMEM
 	select GENERIC_PINCTRL_GROUPS
 	select GENERIC_PINMUX_FUNCTIONS
 	select GENERIC_PINCONF