resources: Update GAPBs resource.json entry

The disk image has been fixed to reflect the instructions in
'src/gapbs'.

Change-Id: Ib521c96a44a301f1f0fe461341064817a28917e5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/52823
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
diff --git a/resources.json b/resources.json
index 69496cb..bed2e3f 100644
--- a/resources.json
+++ b/resources.json
@@ -46,7 +46,7 @@
             "documentation" : "A disk image containing the GAPBS benchmark suite, compiled to X86, built on top of Ubuntu 18.04.",
             "architecture" : "X86",
             "is_zipped" : true,
-            "md5sum" : "84dade91797d17e880845ad606348d49",
+            "md5sum" : "c9217a88eff20e5547be87368a1499c1",
             "url" : "{url_base}/images/x86/ubuntu-18-04/gapbs.img.gz",
             "source" : "src/gabps",
             "additional_metadata" : {