sequence: Fix yet another case of improper sequence comparison.

This time, in mp_seq_cmp_bytes(). How many more cases are still lurking?

py/sequence.c

@@ -100,6 +100,10 @@ bool mp_seq_cmp_bytes(int op, const byte *data1, uint len1, const byte *data2, u
     }
     uint min_len = len1 < len2 ? len1 : len2;
     int res = memcmp(data1, data2, min_len);
+    if (op == MP_BINARY_OP_EQUAL) {
+        // If we are checking for equality, here're the answer
+        return res == 0;
+    }
     if (res < 0) {
         return false;
     }

tests/basics/bytes_compare.py

@@ -49,3 +49,5 @@ print(b"1" <= b"10")
 print(b"1" <= b"1/")
 print(b"10" <= b"1")
 print(b"1/" <= b"1")
+
+print(b'o' == b'\n')