os-posix: include sys/mman.h

qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check
is bogus without a previous inclusion of sys/mman.h.  Include it in
sysemu/os-posix.h and remove it from everywhere else.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

linux-user/elfload.c

@@ -2,7 +2,6 @@
 #include "qemu/osdep.h"
 #include <sys/param.h>
 
-#include <sys/mman.h>
 #include <sys/resource.h>
 
 #include "qemu.h"

linux-user/flatload.c

@@ -34,7 +34,6 @@
 /****************************************************************************/
 
 #include "qemu/osdep.h"
-#include <sys/mman.h>
 
 #include "qemu.h"
 #include "flat.h"

linux-user/main.c

@@ -18,7 +18,6 @@
  */
 #include "qemu/osdep.h"
 #include "qemu-version.h"
-#include <sys/mman.h>
 #include <sys/syscall.h>
 #include <sys/resource.h>
 

linux-user/mmap.c

@@ -17,7 +17,6 @@
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 #include "qemu/osdep.h"
-#include <sys/mman.h>
 #include <linux/mman.h>
 #include <linux/unistd.h>
 

linux-user/strace.c

@@ -5,7 +5,6 @@
 #include <sys/shm.h>
 #include <sys/select.h>
 #include <sys/mount.h>
-#include <sys/mman.h>
 #include <sched.h>
 #include "qemu.h"
 

linux-user/syscall.c

@@ -32,7 +32,6 @@
 #include <sys/personality.h>
 #include <sys/prctl.h>
 #include <sys/resource.h>
-#include <sys/mman.h>
 #include <sys/swap.h>
 #include <linux/capability.h>
 #include <sched.h>