added x86_64_uclibc platform support

configs/orangepi_zero_2w_defconfig

@@ -4,11 +4,9 @@
 export PATH=$PATH:/opt/toolchains/aarch64-buildroot-linux-uclibc/bin
 export version=0.0.1                                  # script version
 export root=$(pwd)                                    # root build directory
-# disk="sdz"                                     # disk to write install image
 export distro_name="Simple"                           # distro name
 export distro_desc="Simple linux distro"              # distro desctiption
 export distro_codename="zero_zero_one"                # distro codename
-# hyperv_support="false"                         # hyperv support for kernel image
 export BOARD_NAME=orangepi_zero_2w
 export out=$root/out                                  # output directory
 export build=$root/build                              # build directory