arm: 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>
Message-id: 1453832250-766-13-git-send-email-peter.maydell@linaro.org
diff --git a/disas/arm.c b/disas/arm.c
index 7a7354b..70da529 100644
--- a/disas/arm.c
+++ b/disas/arm.c
@@ -22,6 +22,7 @@
 /* Start of qemu specific additions.  Mostly this is stub definitions
    for things we don't care about.  */
 
+#include "qemu/osdep.h"
 #include "disas/bfd.h"
 #define ATTRIBUTE_UNUSED __attribute__((unused))
 #define ISSPACE(x) ((x) == ' ' || (x) == '\t' || (x) == '\n')