py/runtime: Move mp_exc_recursion_depth to runtime and rename to raise.

For consistency this helper function is renamed to match the other
exception helpers, and moved to their location in runtime.c.

py/runtime.c

@@ -1456,3 +1456,10 @@ NORETURN void mp_raise_OSError(int errno_) {
 NORETURN void mp_raise_NotImplementedError(const char *msg) {
     mp_raise_msg(&mp_type_NotImplementedError, msg);
 }
+
+#if MICROPY_STACK_CHECK
+NORETURN void mp_raise_recursion_depth(void) {
+    nlr_raise(mp_obj_new_exception_arg1(&mp_type_RuntimeError,
+        MP_OBJ_NEW_QSTR(MP_QSTR_maximum_space_recursion_space_depth_space_exceeded)));
+}
+#endif