sim: dv-cfi: include stdbool.h

The dv-cfi code uses the bool type but doesn't include the stdbool.h
header.  I didn't notice for Blackfin targets as the core Blackfin
header will include stdbool.h, but most targets don't do this.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

sim/common/dv-cfi.c

@@ -27,6 +27,7 @@
 #include <math.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <stdbool.h>
 #include <unistd.h>
 #ifdef HAVE_SYS_MMAN_H
 #include <sys/mman.h>