iio/adc/cc10001_adc.c: Fix !HAS_IOMEM build

Fixes:
drivers/built-in.o: In function `cc10001_adc_probe':
cc10001_adc.c:(.text+0x412e92): undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/adc/Kconfig

@@ -137,7 +137,8 @@ config AXP288_ADC
 
 config CC10001_ADC
 	tristate "Cosmic Circuits 10001 ADC driver"
-	depends on HAS_IOMEM || HAVE_CLK || REGULATOR
+	depends on HAVE_CLK || REGULATOR
+	depends on HAS_IOMEM
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help