[kmac] Re-generate RTLs

Signed-off-by: Eunchan Kim <eunchan@opentitan.org>
diff --git a/hw/ip/kmac/rtl/kmac_reg_top.sv b/hw/ip/kmac/rtl/kmac_reg_top.sv
index 7e6ea84..2d5a99c 100644
--- a/hw/ip/kmac/rtl/kmac_reg_top.sv
+++ b/hw/ip/kmac/rtl/kmac_reg_top.sv
@@ -598,7 +598,7 @@
   prim_subreg #(
     .DW      (1),
     .SWACCESS("RW"),
-    .RESVAL  (1'h1)
+    .RESVAL  (1'h0)
   ) u_cfg_msg_endianness (
     .clk_i   (clk_i    ),
     .rst_ni  (rst_ni  ),