ad9081_fmca_ebz: Update project doc

Signed-off-by: sarpadi <sergiu.arpadi@analog.com>

Author: sarpadi

docs/projects/ad9081_fmca_ebz/index.rst

@@ -93,7 +93,7 @@ Supported carriers
      - :xilinx:`VCU118`
      - FMC+
    * -
-     - :xilinx:`VCU128`
+     - :xilinx:`VCU128` *
      - FMC+
    * -
      - :xilinx:`ZCU102`
@@ -102,6 +102,12 @@ Supported carriers
      - :xilinx:`ZC706`
      - FMC HPC
 
+.. admonition:: Legend
+   :class: note
+
+   - ``*`` removed; last release that supports this project on this carrier is
+      :git-hdl:`hdl_2023_r2 <hdl_2023_r2:projects/ad6676_evb/vc707>`
+
 .. list-table::
    :widths: 35 35 30
    :header-rows: 1