renesas-ra/mpconfigport: Enable MICROPY_TIME_SUPPORT_Y1969_AND_BEFORE.

This setting was missed in df05cae.  It's
needed for this port to pass its `tests/ports/renesas-ra/modtime.py` test.

Signed-off-by: Damien George <[email protected]>

Author: dpgeorge

ports/renesas-ra/mpconfigport.h

@@ -99,6 +99,7 @@
 #ifndef MICROPY_FLOAT_IMPL // can be configured by each board via mpconfigboard.mk
 #define MICROPY_FLOAT_IMPL          (MICROPY_FLOAT_IMPL_FLOAT)
 #endif
+#define MICROPY_TIME_SUPPORT_Y1969_AND_BEFORE (1)
 #define MICROPY_USE_INTERNAL_ERRNO  (1)
 #define MICROPY_SCHEDULER_DEPTH     (8)
 #define MICROPY_SCHEDULER_STATIC_NODES (1)