staging:iio:rename trigger_consumer.h to indicate it is core only.

Need this out the way to create a trigger_consumer.h that actually is
for trigger consumers.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/industrialio-core.c

@@ -22,8 +22,8 @@
 #include <linux/cdev.h>
 #include <linux/slab.h>
 #include "iio.h"
-#include "trigger_consumer.h"
 #include "iio_core.h"
+#include "iio_core_trigger.h"
 
 #define IIO_ID_PREFIX "device"
 #define IIO_ID_FORMAT IIO_ID_PREFIX "%d"

drivers/staging/iio/industrialio-trigger.c

@@ -18,7 +18,7 @@
 #include "iio.h"
 #include "trigger.h"
 #include "iio_core.h"
-#include "trigger_consumer.h"
+#include "iio_core_trigger.h"
 
 /* RFC - Question of approach
  * Make the common case (single sensor single trigger)