Small amount of refactoring to make WSL specific stuff into the WSL
package where possible. This is in preparation for the possibility of
adding more virtualization backends.
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
Use system call instead of GOARCH to support Windows userspace x86 emulation, as well as native arm
Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
