tools/patman: Migrate mailing-list to lists.u-boot-project.org

The U-Boot Mailing-list is moving to the lists.u-boot-project.org
domain, so update all references of the list.denx.de to the new
domain in the patman code.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>

tools/patman/settings.py

@@ -162,7 +162,7 @@ class _ProjectConfigParser(ConfigParser.ConfigParser):
 def ReadGitAliases(fname):
     """Read a git alias file. This is in the form used by git:
 
-    alias uboot  u-boot@lists.denx.de
+    alias uboot  u-boot@lists.u-boot-project.org
     alias wd     Wolfgang Denk <wd@denx.de>
 
     Args: