Fix include statements for qemu-common.h

* qemu-common.h is not a system include file, so it should be included
  with "" instead of <>. Otherwise incremental builds might fail
  because only local include files are checked for changes.

* linux-user/syscall.c included the file twice.

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

hw/virtio-blk.c

@@ -11,7 +11,7 @@
  *
  */
 
-#include <qemu-common.h>
+#include "qemu-common.h"
 #include "qemu-error.h"
 #include "trace.h"
 #include "blockdev.h"

linux-user/syscall.c

@@ -60,7 +60,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
 #include <netinet/ip.h>
 #include <netinet/tcp.h>
 #include <linux/wireless.h>
-#include <qemu-common.h>
+#include "qemu-common.h"
 #ifdef TARGET_GPROF
 #include <sys/gmon.h>
 #endif
@@ -96,7 +96,6 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
 #include "cpu-uname.h"
 
 #include "qemu.h"
-#include "qemu-common.h"
 
 #if defined(CONFIG_USE_NPTL)
 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \

nbd.h

@@ -21,7 +21,7 @@
 
 #include <sys/types.h>
 
-#include <qemu-common.h>
+#include "qemu-common.h"
 
 #include "block_int.h"
 

qemu-nbd.c

@@ -16,7 +16,7 @@
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <qemu-common.h>
+#include "qemu-common.h"
 #include "block_int.h"
 #include "nbd.h"
 

slirp/libslirp.h

 #ifndef _LIBSLIRP_H
 #define _LIBSLIRP_H
 
-#include <qemu-common.h>
+#include "qemu-common.h"
 
 #ifdef CONFIG_SLIRP