examples/embedding-full: Enable uctypes module.

Signed-off-by: Christian Walther <cwalther@gmx.ch>

examples/embedding-full/main.c

@@ -38,6 +38,8 @@ static const char *example_2 =
     "print('time.gmtime(736622952) = 2023-05-05T17:29:12Z:', time.gmtime(736622952))\n"
     "import math\n"
     "help(math)\n"
+    "import uctypes\n"
+    "help(uctypes)\n"
     "import frozenhello\n"
     "help(frozenhello)\n"
     "print('frozenhello.hello():', frozenhello.hello())\n"

examples/embedding-full/mpconfigport.h

@@ -34,8 +34,9 @@
 // Requires MICROPY_EVENT_POLL_HOOK, don't bother as we have no pollable objects.
 #define MICROPY_PY_SELECT                       (0)
 
-// Can be enabled once extmod/moductypes.c is included in the build.
-#define MICROPY_PY_UCTYPES                      (0)
+// On by default and works in this configuration, but disable it to avoid a
+// linker error if you don't include extmod/moductypes.c in the build.
+//#define MICROPY_PY_UCTYPES                      (0)
 
 // Can be enabled once either shared/runtime/sys_stdio_mphal.c or
 // extmod/vfs_posix_file.c is included in the build.