soc: mcxn94x: Add HWINFO support

Add HWINFO support by reading the UUID from
Flash Bank0_IFR1.

Signed-off-by: Mahesh Mahadevan <[email protected]>

Author: mmahadevan108

boards/nxp/frdm_mcxn947/doc/index.rst

@@ -85,6 +85,8 @@ The FRDM-MCXN947 board configuration supports the following hardware features:
 +-----------+------------+-------------------------------------+
 | ADC       | on-chip    | adc                                 |
 +-----------+------------+-------------------------------------+
+| HWINFO    | on-chip    | Unique device serial number         |
++-----------+------------+-------------------------------------+
 | USBHS     | on-chip    | USB device                          |
 +-----------+------------+-------------------------------------+
 | LPCMP     | on-chip    | sensor(comparator)                  |

dts/arm/nxp/nxp_mcxn94x_common.dtsi

@@ -582,6 +582,11 @@
 			/* MCXN94x ROM Flash API supports writing of 128B pages. */
 			write-block-size = <128>;
 		};
+
+		uuid: uuid@1100000 {
+			compatible = "nxp,lpc-uid";
+			reg = <0x1100000 0x10>;
+		};
 	};
 
 	os_timer: timers@49000 {