resources: Add "riscv-hello-example-checkpoint-v22-1" resource

Due to this commit:
https://gem5-review.googlesource.com/c/public/gem5/+/50252, the
RISC-V checkpoint, used in
"configs/example/gem5_library/checkpoints/riscv-hello-restore-checkpoints/riscv-hello-restore-checkpoint.py"
needs to be updated.

Change-Id: I423814105770bbd09e5e8d5c4401b3b10725d633
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/61911
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
diff --git a/resources.json b/resources.json
index 5f503a9..3992073 100644
--- a/resources.json
+++ b/resources.json
@@ -20,7 +20,7 @@
         {
             "type": "resource",
             "name" : "riscv-hello-example-checkpoint",
-            "documentation" : "A checkpoint used in 'configs/example/gem5_library/checkpoints/riscv-hello-restore-checkpoint.py'.",
+            "documentation" : "A checkpoint used in 'configs/example/gem5_library/checkpoints/riscv-hello-restore-checkpoint.py'. This was used for the v22.0 release and should not be used for future releases.",
             "architecture": "RISCV",
             "is_zipped" : false,
             "md5sum" : "3a57c1bb1077176c4587b8a3bf4f8ace",
@@ -30,6 +30,17 @@
         },
         {
             "type": "resource",
+            "name" : "riscv-hello-example-checkpoint-v22-1",
+            "documentation" : "A checkpoint used in 'configs/example/gem5_library/checkpoints/riscv-hello-restore-checkpoint.py'. Used for v22.1 onwards.",
+            "architecture": "RISCV",
+            "is_zipped" : false,
+            "md5sum" : "cb8d8e41cfe13b2baf50f69de78c0cdf",
+            "source" : null,
+            "is_tar_archive" : true,
+            "url": "{url_base}/checkpoints/riscv-hello-example-checkpoint-20220801.tar"
+        },
+        {
+            "type": "resource",
             "name" : "riscv-disk-img",
             "documentation" : "A simple RISCV disk image based on busybox.",
             "architecture": "RISCV",