99base: enable the initqueue in both 'dracut --add-device' and 'dracut --mount' cases.

99base: enable the initqueue in both 'dracut --add-device' and 'dracut --mount' cases.

The commit 9f3c31cd8d68 ("99base: enable initqueue if extra devices are added")
only covers 'dracut --add-device' case, but it did not cover 'dracut --mount'
case, which causes the kdump failure in the Amazon virtual machine.

Lets make sure that the initqueue is enabled in both cases in order to wake up
the device in time.

Reported-by: Xiao Liang <xiliang@redhat.com>
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>