harfbuzz: add patch

package/harfbuzz/patches/patch-Makefile_in

@@ -0,0 +1,11 @@
+--- harfbuzz-1.2.3.orig/Makefile.in	2016-02-25 04:26:05.967296536 +0100
++++ harfbuzz-1.2.3/Makefile.in	2016-04-03 19:27:12.062508784 +0200
+@@ -373,7 +373,7 @@ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+ NULL = 
+ ACLOCAL_AMFLAGS = -I m4
+-SUBDIRS = src util test docs win32
++SUBDIRS = src
+ EXTRA_DIST = \
+ 	autogen.sh \
+ 	harfbuzz.doap \