lm32: 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: 1453832250-766-5-git-send-email-peter.maydell@linaro.org
diff --git a/hw/char/milkymist-uart.c b/hw/char/milkymist-uart.c
index 9b89b7e..03b36b2 100644
--- a/hw/char/milkymist-uart.c
+++ b/hw/char/milkymist-uart.c
@@ -21,6 +21,7 @@
  *   http://www.milkymist.org/socdoc/uart.pdf
  */
 
+#include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/sysbus.h"
 #include "trace.h"