[fpv] Update fpv_all script

Signed-off-by: Michael Schaffner <msf@opentitan.org>
diff --git a/hw/formal/fpv_all b/hw/formal/fpv_all
index 88d110d..fe8feb3 100755
--- a/hw/formal/fpv_all
+++ b/hw/formal/fpv_all
@@ -26,7 +26,8 @@
   # "xbar_main"
   #"top_earlgrey"
   # run formal on dedicated FPV testbenches
-  "prim_arbiter_fpv"
+  "prim_arbiter_ppc_fpv"
+  "prim_arbiter_tree_fpv"
   "prim_lfsr_fpv"
   "prim_fifo_sync_fpv"
   "prim_alert_rxtx_fpv"