Prior to this commit, if the Linux kernel's Xen-related components were
built into the kernel (as opposed to the use of kernel modules), then
the dracut module initialization would fail during the generation of the
initial ramdisk image.
This commit corrects this issue by using an if/then block.
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
In such case, we can't set module parameters in initramfs. But we can
bind the driver to appropriate devices manually - which is also doable
in case of module.
