Because it was exclusively used by the "common" RISC-V privileged code
to build CPU idle routines that are now handled by arch level code.
Also, all platforms defaulted to "y", making it pointless in practice.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This option is no longer needed, all SoCs have been moved out from
soc/riscv/riscv-privileged folder.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Merge both series into a new family: microchip_miv [1], moving them out
of riscv-privileged. Updated naming to stay closer to what vendor
announces on their website.
[1]: https://www.microchip.com/en-us/products/fpgas-and-plds/
fpga-and-soc-design-tools/mi-v
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>