Changes: (#21)

Delete all genesys2 related files and changes from CMakeList and
    Kconfig.

    Update the west.yml file to include only the needed modules for
    scorpio and genesys2

	deleted:    boards/riscv/genesys2/CMakeLists.txt
	deleted:    boards/riscv/genesys2/Kconfig.board
	deleted:    boards/riscv/genesys2/Kconfig.defconfig
	deleted:    boards/riscv/genesys2/board.cmake
	deleted:    boards/riscv/genesys2/doc/index.rst
	deleted:    boards/riscv/genesys2/genesys2.dts
	deleted:    boards/riscv/genesys2/genesys2.yaml
	deleted:    boards/riscv/genesys2/genesys2_defconfig
	deleted:    boards/riscv/genesys2/openocd.cfg
	deleted:    boards/riscv/genesys2/pinmux.c
	modified:   drivers/ethernet/CMakeLists.txt
	modified:   drivers/ethernet/Kconfig
	deleted:    drivers/ethernet/Kconfig.lowRISC
	deleted:    drivers/ethernet/eth_lowRISC.c
	deleted:    drivers/ethernet/eth_lowRISC.h
	deleted:    drivers/ethernet/mdiobb.c
	deleted:    drivers/ethernet/mdiobb.h
	deleted:    drivers/ethernet/rtl8211_phy.h
	deleted:    dts/bindings/ethernet/lowrisc-eth.yaml
	deleted:    dts/riscv/rv64_ariane.dtsi
	modified:   samples/net/sockets/echo_server/overlay-lowrisc.conf
	deleted:    soc/riscv/riscv-privilege/ariane/CMakeLists.txt
	deleted:    soc/riscv/riscv-privilege/ariane/Kconfig.defconfig.series
	deleted:    soc/riscv/riscv-privilege/ariane/Kconfig.series
	deleted:    soc/riscv/riscv-privilege/ariane/Kconfig.soc
	deleted:    soc/riscv/riscv-privilege/ariane/linker.ld
	deleted:    soc/riscv/riscv-privilege/ariane/soc.h
	modified:   west.yml

Author: akifsaglam