update the product bundle part numbers to reflect AAA product list updates

GetStarted.md

@@ -10,9 +10,9 @@ Create a directory of (Read-only) Arm IP bundles from Product Download Hub, logg
 Download Corstone-101 system, Cortex-M0 CPU and PL230 Micro-DMA IP:
 
 ```
-  https://developer.arm.com/downloads/view/BP306-GRP
-  https://developer.arm.com/downloads/view/AT510-GRP
-  https://developer.arm.com/downloads/view/PL230-GRP
+  https://developer.arm.com/downloads/view/BP306
+  https://developer.arm.com/downloads/view/AT510
+  https://developer.arm.com/downloads/view/PL230
 ```
 
 and in each case decompress and unpack the IP deleivery trees: