staging:iio: Add channel types IIO_CURRENT and IIO_POWER.

This is required for the ADE7758 driver cleanup.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/iio.h

@@ -36,6 +36,8 @@ enum iio_chan_type {
 
 	/* real channel types */
 	IIO_IN,
+	IIO_CURRENT,
+	IIO_POWER,
 	IIO_ACCEL,
 	IIO_IN_DIFF,
 	IIO_GYRO,

drivers/staging/iio/industrialio-core.c

@@ -48,6 +48,8 @@ static const char * const iio_chan_type_name_spec_shared[] = {
 	[IIO_TIMESTAMP] = "timestamp",
 	[IIO_ACCEL] = "accel",
 	[IIO_IN] = "in",
+	[IIO_CURRENT] = "current",
+	[IIO_POWER] = "power",
 	[IIO_IN_DIFF] = "in-in",
 	[IIO_GYRO] = "gyro",
 	[IIO_TEMP] = "temp",