Small change (dereferencing pointer instead of double pointer) to avoid snmpget (+walk) to collapse

See merge request !15

Not supported anymore

Display the correct name for disabled state,
avoid buffer overflow in pp_printf,
factorize pointer use.

The software has been slightly changed so that it also supports the streamers-on-spec_trigger-distribution testbench.
Now, both wrc_core and streamers-on-spec_trigger-distribution testbenches are supported.

The following files are changed to ensure the functionality of the WRPC
testbench located in "testbench/wrc_core" folder of the wrpc-core repository:
- wrc_main_sim.c
- arch/risc-v/crt0.S
- arch/risc-v/crt0.h
- dev/endpoint.c
- configs/wrpc_sim_riscv_defconfig

Before compiling wrpc-sw for simulation, choose wrpc_sim_riscv_defconfig configuration.

In endpoint.c, delay function is commented out in the case of simulation.
In wrc_main_sim.c, passing information from the testbench to risc-v's software
is fixed and mini-NIC component is initialized correctly. Also, now the program
doesn't print the error message when the Rx FIFO of mini-NIC is empty, but
waits until there is something in the Rx FIFO, and then continues with checking
the correctness of the received frame.

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

- should fix a rare phase error 'aliasing' issue where the phase error value flips between two extremes, resulting in slow (or never-happening) lock.
- added lock time statistics to 'pll stat' command

Solution V2
Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

needed for wren

could prevent C-a to exit

to simplify static link

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Now enabled on wr2rf

to avoid errors while converting bin to vhd

The enable subcommand is renamed to unfreeze

But disabled by default