[edn/lint] removing arbiter related lint msgs

Signed-off-by: Mark Branstad <mark.branstad@wdc.com>

hw/ip/edn/lint/edn.waiver

diff --git a/hw/ip/edn/lint/edn.waiver b/hw/ip/edn/lint/edn.waiver
index 5fbf6e0..708b58f 100644
--- a/hw/ip/edn/lint/edn.waiver
+++ b/hw/ip/edn/lint/edn.waiver
@@ -3,3 +3,8 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 # waiver file for edn
+
+
+waive -rules {ONE_BIT_MEM_WIDTH} -location {prim_arbiter_ppc.sv} -regexp {.*has word width which is single bit wide.*} \
+      -comment "Usage case specific to EDN and how the arbiter is used."
+