Documentation/sphinx: do not warn about missing tools in 'make help'

Simply move the dochelp rule outside of the HAVE_SPHINX check,
overriding the .DEFAULT rule for HAVE_SPHINX=0.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/Makefile.sphinx b/Documentation/Makefile.sphinx
index d8d13c9..bcb07f8 100644
--- a/Documentation/Makefile.sphinx
+++ b/Documentation/Makefile.sphinx
@@ -67,6 +67,8 @@
 cleandocs:
 	$(Q)rm -rf $(BUILDDIR)
 
+endif # HAVE_SPHINX
+
 dochelp:
 	@echo  ' Linux kernel internal documentation in different formats (Sphinx):'
 	@echo  '  htmldocs        - HTML'
@@ -74,5 +76,3 @@
 	@echo  '  epubdocs        - EPUB'
 	@echo  '  xmldocs         - XML'
 	@echo  '  cleandocs       - clean all generated files'
-
-endif # HAVE_SPHINX