remove oserror from rp6502

libsrc/rp6502/gettimespec.c

@@ -4,7 +4,7 @@
 int __clock_gettimespec (struct timespec* ts, unsigned char op)
 /* Internal method shared by clock_getres and clock_gettime. */
 {
-    int ax = ria_call_int_errno (op);
+    int ax = ria_call_int (op);
     if (ax >= 0) {
         ts->tv_sec = ria_pop_long ();
         ts->tv_nsec = ria_pop_long ();