Add TensorFlow implementation of ConvNeXTv2 (#25558)

* Add type annotations to TFConvNextDropPath

* Use tf.debugging.assert_equal for TFConvNextEmbeddings shape check

* Add TensorFlow implementation of ConvNeXTV2

* check_docstrings: add TFConvNextV2Model to exclusions

TFConvNextV2Model and TFConvNextV2ForImageClassification have docstrings
which are equivalent to their PyTorch cousins, but a parsing issue prevents them
from passing the test.

Adding exclusions for these two classes as discussed in #25558.

docs/source/en/model_doc/convnextv2.md

@@ -58,4 +58,15 @@ If you're interested in submitting a resource to be included here, please feel f
 ## ConvNextV2ForImageClassification
 
 [[autodoc]] ConvNextV2ForImageClassification
-    - forward
+    - forward
+
+## TFConvNextV2Model
+
+[[autodoc]] TFConvNextV2Model
+    - call
+
+
+## TFConvNextV2ForImageClassification
+
+[[autodoc]] TFConvNextV2ForImageClassification
+    - call