linux-user: translate resource also for prlimit64

The resource argument is translated from host to target for
[gs]etprlimit but not for prlimit64. Fix this.
Signed-off-by: NFelix Janda <felix.janda@posteo.de>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

linux-user/syscall.c

@@ -9529,6 +9529,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
         struct target_rlimit64 *target_rnew, *target_rold;
         struct host_rlimit64 rnew, rold, *rnewp = 0;
+        int resource = target_to_host_resource(arg2);
         if (arg3) {
             if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
                 goto efault;
@@ -9539,7 +9540,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
             rnewp = &rnew;
         }
 
-        ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));
+        ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
         if (!is_error(ret) && arg4) {
             if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
                 goto efault;