alsa-lib: topology: Add missing include sys/stat.h

Fixes this build error with uclibc:

alsa-lib-1.1.0/src/topology/parser.c: In function 'snd_tplg_build_file':
alsa-lib-1.1.0/src/topology/parser.c:262:35: error: 'S_IRUSR' undeclared
(first use in this function)
open(outfile, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);

(From OE-Core rev: 9ec2c6d4fd9c5c1f745f4d402922b73649ff6287)

Signed-off-by: Maxin B. John <maxin.john@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-multimedia/alsa/alsa-lib/0001-topology-Add-missing-include-sys-stat.h.patch

@@ -0,0 +1,35 @@
+From 3f1dba9a821b53b42001605f9a126a958804884f Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Mon, 9 Nov 2015 13:37:26 +0100
+Subject: [PATCH] topology: Add missing include sys/stat.h
+
+Necessary for proper definitions of S_IRUSR & co. Otherwise it
+results in compile errors with old glibc and uclibc:
+  parser.c: In function 'snd_tplg_build_file':
+  parser.c:262: error: 'S_IRUSR' undeclared (first use in this function)
+  parser.c:262: error: (Each undeclared identifier is reported only once
+  parser.c:262: error: for each function it appears in.)
+
+Upstream-Status: Backport
+
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Maxin B. John <maxin.john@intel.com>
+---
+ src/topology/parser.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/topology/parser.c b/src/topology/parser.c
+index 80a0ae0..18bb9c7 100644
+--- a/src/topology/parser.c
++++ b/src/topology/parser.c
+@@ -16,6 +16,7 @@
+            Liam Girdwood <liam.r.girdwood@linux.intel.com>
+ */
+ 
++#include <sys/stat.h>
+ #include "list.h"
+ #include "tplg_local.h"
+ 
+-- 
+2.4.0
+

meta/recipes-multimedia/alsa/alsa-lib_1.1.0.bb

@@ -17,6 +17,7 @@ ARM_INSTRUCTION_SET = "arm"
 SRC_URI = "ftp://ftp.alsa-project.org/pub/lib/${BP}.tar.bz2 \
            file://Check-if-wordexp-function-is-supported.patch \
            file://avoid-including-sys-poll.h-directly.patch \
+           file://0001-topology-Add-missing-include-sys-stat.h.patch \
 "
 SRC_URI[md5sum] = "69515ca73c3c4a212ef45160dea846c1"
 SRC_URI[sha256sum] = "dfde65d11e82b68f82e562ab6228c1fb7c78854345d3c57e2c68a9dd3dae1f15"