py/vm: Consistently indent #if guards to match the code they surround.

Signed-off-by: Damien George <damien@micropython.org>

py/vm.c

@@ -1296,9 +1296,8 @@ yield:
                         SET_TOP(mp_binary_op(ip[-1] - MP_BC_BINARY_OP_MULTI, lhs, rhs));
                         DISPATCH();
                     } else
-#endif
+                #endif // MICROPY_OPT_COMPUTED_GOTO
                 {
-
                     mp_obj_t obj = mp_obj_new_exception_msg(&mp_type_NotImplementedError, MP_ERROR_TEXT("opcode"));
                     nlr_pop();
                     code_state->state[0] = obj;