iio:adc:cc10001_adc: fix Kconfig dependency

The Cosmic Circuits 10001 ADC driver depends on HAS_IOMEM, HAVE_CLK and
REGULATOR together, not just any of these.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/adc/Kconfig

@@ -146,8 +146,7 @@ config DA9150_GPADC
 
 config CC10001_ADC
 	tristate "Cosmic Circuits 10001 ADC driver"
-	depends on HAVE_CLK || REGULATOR
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && HAVE_CLK && REGULATOR
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help