Updates for missing files/instances in prefix script

[calebofearth]

The script https://github.com/chipsalliance/Cores-VeeR-EL2/blob/main/tools/prefix_macros.sh is used to apply unique prefixes for design files, header/include files, and some parameter names so that multiple VeeR instances may coexist in a design and be globally compiled.
This script currently omits/misses the following instances:

• As reported in Multiple pic_map_auto.h files caliptra-ss#1018, pic_map_auto.h should be renamed with the specified prefix
  • IMO, this file should also be renamed with a .svh suffix, since it contains SystemVerilog code
• el2_dec_csr_equ_m.svh and el2_dec_csr_equ_mu.svh are included header files and should be unique per-instance of VeeR
  • See include statement at

    Cores-VeeR-EL2/design/dec/el2_dec_tlu_ctl.sv

    Line 496 in 250bd19

    `include "el2_dec_csr_equ_mu.svh"

• Parameter RV_BUILD_AHB_LITE, defined in common_defines.vh
  • Also, where it is referenced:

    Cores-VeeR-EL2/design/el2_veer_wrapper.sv

    Line 298 in 250bd19

    `ifdef RV_BUILD_AHB_LITE