drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

Fix RDAC read back errors caused by a typo. Value must shift by 2.

Fixes: a4bd394956f2 ("drivers/misc/ad525x_dpot.c: new features")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 15e88078..f1a0b99 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -216,7 +216,7 @@
 			 */
 			value = swab16(value);
 
-			if (dpot->uid == DPOT_UID(AD5271_ID))
+			if (dpot->uid == DPOT_UID(AD5274_ID))
 				value = value >> 2;
 		return value;
 	default: