[MODEL] Add support for Zamba2 models (#13185)

Signed-off-by: Yury Tokpanov <yury@zyphra.com>
Signed-off-by: Quentin Anthony <qganthony@yahoo.com>
Co-authored-by: Quentin Anthony <qganthony@yahoo.com>
Co-authored-by: Tyler Michael Smith <tysmith@redhat.com>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>

docs/source/models/supported_models.md

@@ -477,6 +477,11 @@ See [this page](#generative-models) for more information on how to use generativ
   * `xverse/XVERSE-7B-Chat`, `xverse/XVERSE-13B-Chat`, `xverse/XVERSE-65B-Chat`, etc.
   * ✅︎
   * ✅︎
+- * `Zamba2ForCausalLM`
+  * Zamba2
+  * `Zyphra/Zamba2-7B-instruct`, `Zyphra/Zamba2-2.7B-instruct`, `Zyphra/Zamba2-1.2B-instruct`, etc.
+  *
+  *
 :::
 
 :::{note}