objtype: Enable __lt__ method support for instances.

py/objtype.c

@@ -336,9 +336,9 @@ STATIC const qstr binary_op_method_name[] = {
     MP_BINARY_OP_INPLACE_FLOOR_DIVIDE,
     MP_BINARY_OP_INPLACE_TRUE_DIVIDE,
     MP_BINARY_OP_INPLACE_MODULO,
-    MP_BINARY_OP_INPLACE_POWER,
-    MP_BINARY_OP_LESS,
-    MP_BINARY_OP_MORE,
+    MP_BINARY_OP_INPLACE_POWER,*/
+    [MP_BINARY_OP_LESS] = MP_QSTR___lt__,
+    /*MP_BINARY_OP_MORE,
     MP_BINARY_OP_EQUAL,
     MP_BINARY_OP_LESS_EQUAL,
     MP_BINARY_OP_MORE_EQUAL,

py/qstrdefs.h

@@ -60,6 +60,7 @@ Q(__str__)
 Q(__getattr__)
 Q(__del__)
 Q(__call__)
+Q(__lt__)
 
 Q(micropython)
 Q(bytecode)