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/tools/misc/chafa/xmlcatalog_patch.patch

@@ -0,0 +1,23 @@
+diff --git a/configure.ac b/configure.ac
+index 0055a70..fd4a905 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -111,18 +111,6 @@ AS_IF([ test "$enable_man" != no ], [
+   ])
+ ])
+ 
+-AS_IF([test "$enable_man" != no], [
+-  dnl check for DocBook XSL stylesheets in the local catalog
+-  JH_CHECK_XML_CATALOG([http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl],
+-     [DocBook XSL Stylesheets], [have_docbook_style=yes],[have_docbook_style=no])
+-  AS_IF([ test "$have_docbook_style" != yes ], [
+-    AS_IF([ test "$enable_man" = yes ], [
+-      AC_MSG_ERROR([DocBook XSL Stylesheets are required for --enable-man])
+-    ])
+-    enable_man=no
+-  ])
+-])
+-
+ AM_CONDITIONAL(ENABLE_MAN, test "$enable_man" != no)
+ 
+ AC_MSG_CHECKING([whether to generate man pages])