add isl for 9

altarch-devel.cfg

 # kind: resf.peridot.v1.CatalogSync
 # cross-binutils and cross-gcc stuff
 package {
-  name: "raspberrypi2"
+  name: "isl"
   type: PACKAGE_TYPE_NORMAL_SRC
-    
-    # This is the altarch-common empty repo that gets excluded at the top anyway
-    # It doesn't matter what gets included, because it gets excluded no matter what
-    repository {
-      name: "altarch-common"
-      include_filter: "raspberrypi2-kernel4.aarch64"
-    }
+  repository {
+    name: "altarch-devel"
+    include_filter: "isl.aarch64"
+    include_filter: "isl-devel.aarch64"
+  }
 }
 package {
   name: "cross-binutils"