all: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>

target-sh4/cpu.h

@@ -19,7 +19,6 @@
 #ifndef _CPU_SH4_H
 #define _CPU_SH4_H
 
-#include "config.h"
 #include "qemu-common.h"
 
 #define TARGET_LONG_BITS 32