[aes] Fix lint waiver format

Signed-off-by: Michael Schaffner <msf@google.com>
diff --git a/hw/ip/aes/lint/aes.waiver b/hw/ip/aes/lint/aes.waiver
index 811f3af..52820b5 100644
--- a/hw/ip/aes/lint/aes.waiver
+++ b/hw/ip/aes/lint/aes.waiver
@@ -4,7 +4,7 @@
 #
 # waiver file for aes
 waive -rules COMBO_READ_WRITE -location {aes_key_expand.sv} -regexp {'regular\[[0-9]+:?[0-9]*\]\[2:1|4:2|6:5\]' is read from within the same combinational process block} \
-      -comment "regular[*] is assigned in a for loop, regular[*][1|2|5] depends on regular[*][0|1|4]"
+      -comment "regular\[*\] is assigned in a for loop, regular\[*\]\[1|2|5\] depends on regular\[*\]\[0|1|4\]"
 
 waive -rules {CLOCK_USE} -location {aes_cipher_core.sv} -regexp {clk_i' is connected to 'aes_sub_bytes' port} \
       -comment "when using fully combinational S-Box implementations, no clock is used inside aes_sub_bytes"