update modeling_mim.py: changing "not mode == 'reflect'" to "mode != 'reflect'"

Author: Helloyouth2022

mindnlp/transformers/models/mimi/modeling_mimi.py

@@ -189,7 +189,7 @@ def _pad1d(hidden_states: ms.Tensor, paddings: Tuple[int, int], mode: str = "zer
         length = hidden_states.shape[-1]
         padding_left, padding_right = paddings
         paddings = (int(padding_left), int(padding_right))
-        if not mode == "reflect":
+        if mode != "reflect":
             # "ConstantPadND()(input=<Tensor>, padding=<list of int, Tensor, tuple of int>, value=<Number>)".
             return nn.functional.pad(hidden_states, paddings, mode, value)