bsd-user: Add missing break after do_bsd_preadv

Without it, we'd call preadv, then write with weird parameters, which is
clearly not ideal...

Signed-off-by: Warner Losh <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Fixes: 770d8ab ("bsd-user/bsd-file.h: Meat of the write system calls")
Reviewed-by: Richard Henderson <[email protected]>
Message-Id: <[email protected]>

Author: bsdimp

bsd-user/freebsd/os-syscall.c

@@ -240,6 +240,7 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
 
     case TARGET_FREEBSD_NR_preadv: /* preadv(2) */
         ret = do_bsd_preadv(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
+        break;
 
     case TARGET_FREEBSD_NR_write: /* write(2) */
         ret = do_bsd_write(arg1, arg2, arg3);