Added support for QEMU SkyLake

machines/QEMU-SKYLAKE/definition.xml

+<project name="QEMU SkyLake machine definition">
+
+ <property name="PRETTY_NAME" value="${ant.project.name} for QEMU SkyLake"/>
+ <property name="CLFS_TARGET" value="x86_64-skylake-linux-gnu"/>
+ <property name="ARCH" value="x86_64"/>
+ <property name="GCC_CROSS_CONFIG" value="--with-arch=skylake --with-tune=skylake"/>
+ <property name="GCC_CONFIG" value="${GCC_CROSS_CONFIG}"/>
+ <property name="CONSOLE" value="ttyS0"/>
+ <property name="DISK_LABEL" value="mbr"/>
+ <property name="ROOT_DEVICE" value="sda"/>
+ <property name="DISK" value="${ROOT_DEVICE}"/>
+ <property name="SECONDARY" value="sdb"/>
+ <property name="BOARD" value="qemu-skylake"/>
+ <property name="DEVICE_TYPE" value="SKYLAKE"/>
+ <property name="GOARCH" value="amd64"/>
+ <property name="SHUTDOWN_WATCHDOG" value="16s"/>
+ <property name="RUNTIME_WATCHDOG" value="16s"/>
+
+ <target name="run-system-qemu-skylake">
+  <antcall target="run-system-skylake"/>
+ </target>
+
+ <target name="run-system-with-secondary-qemu-skylake">
+  <antcall target="run-system-with-secondary-skylake"/>
+ </target>
+
+</project>