[Model] FalconMamba Support (#9325)

docs/source/models/supported_models.rst

@@ -87,6 +87,11 @@ Text Generation
     - :code:`tiiuae/falcon-7b`, :code:`tiiuae/falcon-40b`, :code:`tiiuae/falcon-rw-7b`, etc.
     -
     - ✅︎
+  * - :code:`FalconMambaForCausalLM`
+    - FalconMamba
+    - :code:`tiiuae/falcon-mamba-7b`, :code:`tiiuae/falcon-mamba-7b-instruct`, etc.
+    - ✅︎
+    -  
   * - :code:`GemmaForCausalLM`
     - Gemma
     - :code:`google/gemma-2b`, :code:`google/gemma-7b`, etc.