[doc, sram_ctrl] Bump DIF SRAM CTRL to S2

Signed-off-by: Silvestrs Timofejevs <silvestrst@lowrisc.org>
diff --git a/sw/device/lib/dif/dif_sram_ctrl.md b/sw/device/lib/dif/dif_sram_ctrl.md
index 4af310d..26a02f3 100644
--- a/sw/device/lib/dif/dif_sram_ctrl.md
+++ b/sw/device/lib/dif/dif_sram_ctrl.md
@@ -24,7 +24,7 @@
 Type           | Item                        | Resolution  | Note/Collaterals
 ---------------|-----------------------------|-------------|------------------
 Coordination   | [DIF_HW_FEATURE_COMPLETE][] | Done        | [HW Dashboard]({{< relref "hw" >}})
-Implementation | [DIF_FEATURES][]            | In Progress |
+Implementation | [DIF_FEATURES][]            | Done        |
 Coordination   | [DIF_DV_TESTS][]            | Done        |
 
 [DIF_HW_FEATURE_COMPLETE]: {{< relref "/doc/project/checklist.md#dif_hw_feature_complete" >}}