directfb: bump to version 1.4.15

Remove patch that has been included upstream.

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/directfb/directfb-1.4.13-ppc-compile-fix.patch

@@ -1,17 +0,0 @@
----
- lib/direct/ppcasm_memcpy_cachable.S |    2 --
- 1 file changed, 2 deletions(-)
-
-Index: DirectFB-1.2.7/lib/direct/ppcasm_memcpy_cachable.S
-===================================================================
---- DirectFB-1.2.7.orig/lib/direct/ppcasm_memcpy_cachable.S
-+++ DirectFB-1.2.7/lib/direct/ppcasm_memcpy_cachable.S
-@@ -34,8 +34,6 @@
- 
- #define __ASSEMBLY__
- 
--#include <linux/config.h>
--
- #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
- #define L1_CACHE_LINE_SIZE       16
- #define LG_L1_CACHE_LINE_SIZE     4 

package/directfb/directfb.mk

@@ -4,7 +4,7 @@
 #
 #############################################################
 DIRECTFB_VERSION_MAJOR = 1.4
-DIRECTFB_VERSION = $(DIRECTFB_VERSION_MAJOR).13
+DIRECTFB_VERSION = $(DIRECTFB_VERSION_MAJOR).15
 DIRECTFB_SITE = http://www.directfb.org/downloads/Core/DirectFB-$(DIRECTFB_VERSION_MAJOR)
 DIRECTFB_SOURCE = DirectFB-$(DIRECTFB_VERSION).tar.gz
 DIRECTFB_AUTORECONF = YES