model: Add Kimi-K2.5 support (#19170)

* Move dequant_model to after the text_config merge
Add new kimi-k2.5 keys to mtmd convert
Update V_MMPROJ tensor mapping for new mm_projector.proj keys
Update V_M_IMP_NORM for new mm_projector.pre_norm key

* Fix a couple of oversights

* Add image support for Kimi-K2.5

* Revert changes to KimiVLForConditionalGeneration

* Fix an assert crash

* Fix permute swapping w / h on accident

* Kimi-K2.5: Use merged QKV for vision

* Kimi-K2.5: pre-convert vision QK to use build_rope_2d

* Kimi-K2.5: support non-interleaved rope for vision

* Kimi-K2.5: fix min / max pixel

* Kimi-K2.5: remove v/o permutes, unnecessary

* Kimi-K2.5: update permute name to match

* Update convert_hf_to_gguf.py

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* Kimi-K2.5: replace build_rope_2d ggml_cont with ggml_view_3d pointers

---------

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

tools/mtmd/CMakeLists.txt

@@ -19,6 +19,7 @@ add_library(mtmd
             models/glm4v.cpp
             models/internvl.cpp
             models/kimivl.cpp
+            models/kimik25.cpp
             models/llama4.cpp
             models/llava.cpp
             models/minicpmv.cpp