ad7124: Add VADJ value in README

Signed-off-by: Stanca Pop <stanca.pop@analog.com>

Author: StancaPop

projects/ad7124_asdz/README.md

@@ -5,6 +5,7 @@
   - [EVAL-AD7124-8](https://www.analog.com/eval-ad7124-8)
 - System documentation: https://wiki.analog.com/resources/eval/user-guides/ad7124-x
 - HDL project documentation: http://analogdevicesinc.github.io/hdl/projects/ad7124_asdz/index.html
+- Evaluation board VADJ: 3.3V
 
 ## Supported parts
 

projects/ad7124_asdz/de10nano/README.md

@@ -1,10 +1,12 @@
-# AD7124-ASDZ/DE10-Nano HDL Project
+<!-- no_build_example, no_no_os, no_dts -->
+
+# AD7124-ASDZ/DE10NANO HDL Project
+
+- VADJ with which it was tested in hardware: 3.3V
 
 ## Building the project
 
 ```
 cd projects/ad7124_asdz/de10nano
 make
 ```
-
-Corresponding Linux driver: [ad7124.c](https://github.com/analogdevicesinc/linux/blob/main/drivers/iio/adc/ad7124.c)