sdbus++: rename template mako files

meson automatically generates a 'ninja clang-format' target since
we have a .clang-format, but this attempts to reformat any file which
ends with .cpp or .hpp.  We previously named our mako files as
foo.mako.cpp, which was picked up by this target.  Rename them as
foo.cpp.mako instead to avoid hitting this meson target.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I9002f850c315c6e97a871e15f70f333f0608a2ad
diff --git a/tools/sdbusplus/property.py b/tools/sdbusplus/property.py
index 6dceca1..b7808d3 100644
--- a/tools/sdbusplus/property.py
+++ b/tools/sdbusplus/property.py
@@ -183,9 +183,9 @@
         return result
 
     def markdown(self, loader):
-        return self.render(loader, "property.mako.md", property=self,
+        return self.render(loader, "property.md.mako", property=self,
                            post=str.strip)
 
     def cpp_prototype(self, loader, interface, ptype):
-        return self.render(loader, "property.mako.prototype.hpp", property=self,
+        return self.render(loader, "property.prototype.hpp.mako", property=self,
                            interface=interface, ptype=ptype, post=str.rstrip)