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>

nixos/tests/xmpp/xmpp-sendmessage.nix

@@ -0,0 +1,84 @@
+{ writeScriptBin, writeText, python3, connectTo ? "localhost" }:
+let
+  dummyFile = writeText "dummy-file" ''
+    Dear dog,
+
+    Please find this *really* important attachment.
+
+    Yours truly,
+    John
+  '';
+in writeScriptBin "send-message" ''
+#!${(python3.withPackages (ps: [ ps.slixmpp ])).interpreter}
+import logging
+import sys
+from types import MethodType
+
+from slixmpp import ClientXMPP
+from slixmpp.exceptions import IqError, IqTimeout
+
+
+class CthonTest(ClientXMPP):
+
+    def __init__(self, jid, password):
+        ClientXMPP.__init__(self, jid, password)
+        self.add_event_handler("session_start", self.session_start)
+        self.test_succeeded = False
+
+    async def session_start(self, event):
+        try:
+            # Exceptions in event handlers are printed to stderr but not
+            # propagated, they do not make the script terminate with a non-zero
+            # exit code. We use the `test_succeeded` flag as a workaround and
+            # check it later at the end of the script to exit with a proper
+            # exit code.
+            # Additionally, this flag ensures that this event handler has been
+            # actually run by ClientXMPP, which may well not be the case.
+            await self.test_xmpp_server()
+            self.test_succeeded = True
+        finally:
+            # Even if an exception happens in `test_xmpp_server()`, we still
+            # need to disconnect explicitly, otherwise the process will hang
+            # forever.
+            self.disconnect(wait=True)
+
+    async def test_xmpp_server(self):
+        log = logging.getLogger(__name__)
+        self.send_presence()
+        self.get_roster()
+        # Sending a test message
+        self.send_message(mto="azurediamond@example.com", mbody="Hello, this is dog.", mtype="chat")
+        log.info('Message sent')
+
+        # Test http upload (XEP_0363)
+        try:
+            url = await self['xep_0363'].upload_file("${dummyFile}",timeout=10)
+        except:
+            log.error("ERROR: Cannot run upload command. XEP_0363 seems broken")
+            sys.exit(1)
+        log.info('Upload success!')
+
+        # Test MUC
+        # TODO: use join_muc_wait() after slixmpp 1.8.0 is released.
+        self.plugin['xep_0045'].join_muc('testMucRoom', 'cthon98')
+        log.info('MUC join success!')
+        log.info('XMPP SCRIPT TEST SUCCESS')
+
+
+if __name__ == '__main__':
+    logging.basicConfig(level=logging.DEBUG,
+                        format='%(levelname)-8s %(message)s')
+
+    ct = CthonTest('cthon98@example.com', 'nothunter2')
+    ct.register_plugin('xep_0071')
+    ct.register_plugin('xep_0128')
+    # HTTP Upload
+    ct.register_plugin('xep_0363')
+    # MUC
+    ct.register_plugin('xep_0045')
+    ct.connect(("server", 5222))
+    ct.process(forever=False)
+
+    if not ct.test_succeeded:
+        sys.exit(1)
+''