dt: bindings: fsl,vf610-pit: Add compatible for s32g2 and s32g3

The Vybrid Family is a NXP (formerly Freescale) platform having a
Programmable Interrupt Timer (PIT). This timer is an IP found also on
the NXP Automotive platform S32G2 and S32G3.

Add the compatible for those platforms to describe the timer.

Signed-off-by: Daniel Lezcano <[e-mail]>
Acked-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/timer/fsl,vf610-pit.yaml

···
 
 properties:
   compatible:
-    enum:
-      - fsl,vf610-pit
+    oneOf:
+      - enum:
+          - fsl,vf610-pit
+          - nxp,s32g2-pit
+      - items:
+          - const: nxp,s32g3-pit
+          - const: nxp,s32g2-pit
 
   reg:
     maxItems: 1