Include config.h so we get the defines available for subsequent
include files

Fixes errors like

| In file included from /home/ubuntu/work/upstream/openembedded-core/build/tmp-glibc/sysroots/beaglebone/usr/include/string.h:634:0,
|                  from /home/ubuntu/work/upstream/openembedded-core/build/tmp-glibc/work/cortexa8t2hf-vfp-neon-oe-linux-gnueabi/libmtp/1.1.5-r0/libmtp-1.1.5/src/util.c:36:
| /home/ubuntu/work/upstream/openembedded-core/build/tmp-glibc/work/cortexa8t2hf-vfp-neon-oe-linux-gnueabi/libmtp/1.1.5-r0/libmtp-1.1.5/src/util.h:29:7: error: expected identifier or '(' before '__extension
__'
|  char *strndup (const char *s, size_t n);
|        ^
| /home/ubuntu/work/upstream/openembedded-core/build/tmp-glibc/work/cortexa8t2hf-vfp-neon-oe-linux-gnueabi/libmtp/1.1.5-r0/libmtp-1.1.5/src/util.c:111:7: error: expected identifier or '(' before '__extensio
n__'
|  char *strndup (const char *s, size_t n)
|        ^
| make[2]: *** [libmtp_la-util.lo] Error 1


Signed-off-by: Khem Raj <raj.khem@gmail.com>

Upstream-Status: Pending

Index: libmtp-1.1.5/src/util.c
===================================================================
--- libmtp-1.1.5.orig/src/util.c	2011-01-10 05:37:21.000000000 -0800
+++ libmtp-1.1.5/src/util.c	2014-09-03 23:50:44.703563888 -0700
@@ -22,6 +22,8 @@
  * Boston, MA 02111-1307, USA.
  */
 
+#include "config.h"
+
 /* MSVC does not have these */
 #ifndef _MSC_VER
 #include <sys/time.h>