uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/tools/build-managers/bazel/bazel_5/update-srcDeps.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+import sys
+import json
+
+if len(sys.argv) != 2:
+    print("usage: ./this-script src-deps.json < WORKSPACE", file=sys.stderr)
+    print("Takes the bazel WORKSPACE file and reads all archives into a json dict (by evaling it as python code)", file=sys.stderr)
+    print("Hail Eris.", file=sys.stderr)
+    sys.exit(1)
+
+http_archives = []
+
+# just the kw args are the dict { name, sha256, urls … }
+def http_archive(**kw):
+    http_archives.append(kw)
+# like http_file
+def http_file(**kw):
+    http_archives.append(kw)
+
+# this is inverted from http_archive/http_file and bundles multiple archives
+def _distdir_tar(**kw):
+    for archive_name in kw['archives']:
+        http_archives.append({
+            "name": archive_name,
+            "sha256": kw['sha256'][archive_name],
+            "urls": kw['urls'][archive_name]
+        })
+
+# TODO?
+def git_repository(**kw):
+    print(json.dumps(kw, sort_keys=True, indent=4), file=sys.stderr)
+    sys.exit(1)
+
+# execute the WORKSPACE like it was python code in this module,
+# using all the function stubs from above.
+exec(sys.stdin.read())
+
+# transform to a dict with the names as keys
+d = { el['name']: el for el in http_archives }
+
+def has_urls(el):
+    return ('url' in el and el['url']) or ('urls' in el and el['urls'])
+def has_sha256(el):
+    return 'sha256' in el and el['sha256']
+bad_archives = list(filter(lambda el: not has_urls(el) or not has_sha256(el), d.values()))
+if bad_archives:
+    print('Following bazel dependencies are missing url or sha256', file=sys.stderr)
+    print('Check bazel sources for master or non-checksummed dependencies', file=sys.stderr)
+    for el in bad_archives:
+        print(json.dumps(el, sort_keys=True, indent=4), file=sys.stderr)
+    sys.exit(1)
+
+with open(sys.argv[1], "w") as f:
+    print(json.dumps(d, sort_keys=True, indent=4), file=f)