pango: re-enable thai module

This module got disabled when pango was upgraded to 1.19.3. But now,
the module builds fine. And even more: disabling it breaks the build
when modules are compiled statically into pango.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/pango/pango-no-libthai.patch

@@ -1,10 +0,0 @@
---- a/modules/Makefile.am	2007-07-05 17:30:28.000000000 -0400
-+++ b/modules/Makefile.am	2008-02-09 19:37:13.000000000 -0500
-@@ -8,7 +8,6 @@ SUBDIRS = 		\
- 	indic           \
- 	khmer		\
- 	syriac		\
--	thai		\
- 	tibetan
- 
- EXTRA_DIST =		\