[None][doc] fix mtp.py typo (#9307)

Signed-off-by: liugaoji <[email protected]>

Author: attack204

tensorrt_llm/_torch/speculative/mtp.py

@@ -407,20 +407,20 @@ def forward(
                 - KV cache: (ABCD) + EFGH (H's KV cache is invalid)
                 - hidden states: H_E, H_F, H_G, H_H (H_H is invalid)
             Draft model:
-                MPT1:
+                MTP1:
                     # For generation request, `mtp_num_modules` of tokens will be used as input.
                     - input tokens: FGX
                     - input hidden states: H_E, H_F, H_G
                     - KV cache: (BCDE) + FGX
                     - output hidden states: h_F, h_G, h_X
                     - output next draft token: N
-                MPT2:
+                MTP2:
                     - input tokens: GXN
                     - input hidden states: H_F, H_G, h_X
                     - KV cache: (CDEF) + GXN
                     - output hidden states: h_G, h_X, h_N
                     - output next draft token: O
-                MPT3:
+                MTP3:
                     - input tokens: XNO
                     - input hidden states: H_G, H_X, h_N
                     - KV cache: (DEFG) + XNO