riscv: dts: sophgo: add ziccrse for sg2042

sg2042 support Ziccrse ISA extension [1].

Link: https://lore.kernel.org/all/[email protected]/ [1]

Signed-off-by: Han Gao <[email protected]>
Reviewed-by: Inochi Amaoto <[email protected]>
Reviewed-by: Nutty Liu <[email protected]>
Reviewed-by: Chen Wang <[email protected]>
Link: https://lore.kernel.org/r/859df9a05e1693fec9bd2c7dcf14415bb15230bd.1751698574.git.rabenda.cn@gmail.com
Signed-off-by: Inochi Amaoto <[email protected]>
Signed-off-by: Chen Wang <[email protected]>
Signed-off-by: Chen Wang <[email protected]>

Author: RevySR