Set kernel subsystem to XT_NATIVE_KERNEL

xtoskrnl/CMakeLists.txt

@@ -38,4 +38,4 @@ set_install_target(xtoskrnl "exectos/boot")
 set_entrypoint(xtoskrnl "KeStartXtSystem")
 set_imagebase(xtoskrnl ${BASEADDRESS_XTOSKRNL})
 set_ordinals(xtoskrnl TRUE)
-set_subsystem(xtoskrnl native)
+set_subsystem(xtoskrnl native xt_native_kernel)