python-imaging: fix compilation with Freetype 2.5.1

Take a patch from the Pillow "friendly fork" to fix compilation with Freetype
2.5.1.

(From OE-Core rev: bedaf81dc045c4b222cdf586a4ec901c4e1d08f8)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python-imaging/fix-freetype-includes.patch

@@ -0,0 +1,30 @@
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+From c6040f618d8f2706a7b46d1cdf37d1a587f9701f Mon Sep 17 00:00:00 2001
+From: Andrew Stromnov <stromnov@gmail.com>
+Date: Thu, 28 Nov 2013 16:58:43 +0400
+Subject: [PATCH] fix compiling with FreeType 2.5.1
+
+---
+ _imagingft.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/_imagingft.c b/_imagingft.c
+index 47d50bd..f19555b 100644
+--- a/_imagingft.c
++++ b/_imagingft.c
+@@ -59,7 +59,11 @@ struct {
+     const char* message;
+ } ft_errors[] =
+ 
++#if defined(USE_FREETYPE_2_1)
++#include FT_ERRORS_H
++#else
+ #include <freetype/fterrors.h>
++#endif
+ 
+ /* -------------------------------------------------------------------- */
+ /* font objects */
+-- 
+1.8.5.1