Fix verilator model

Created by: bluewww

With the latest changes there were a few regression in the verilator testbench. Here are fixes related to verilator and newer gcc versions.

verilator-model/Makefile: Need to ignore aligned-new warnings to make compilation work on newer gcc without breaking older versions. Add riscv_pmp to be verilated too.

verilator-model/top.sv: Disable PULP_SECURE since in riscv_cs_registers there is a blocking and non-blocking assignment to pmp_req_q which verilator can't deal with. Remove data_err_i (doesn't exist anymore). Add fregfile_disable_i.