Split the high voltage part of the mgmt_protect.v module into its own
module called mgmt_protect_hv.v so that it can be synthesized separately
into a hard macro, then included into the mgmt_protect.v block.
diff --git a/verilog/rtl/caravel.v b/verilog/rtl/caravel.v
index 3832f67..130a35c 100644
--- a/verilog/rtl/caravel.v
+++ b/verilog/rtl/caravel.v
@@ -35,6 +35,7 @@
`include "caravel_clocking.v"
`include "mgmt_core.v"
`include "mgmt_protect.v"
+`include "mgmt_protect_hv.v"
`include "mprj_io.v"
`include "chip_io.v"
`include "user_id_programming.v"
