Add support for dracut detection during boot
Add support for dracut detection during boot

In some cases, kernel booting would drop down to
dracut console, this patch would detect that
state and properly errorout the testcase.

Signed-off-by: Satheesh Rajendran <6cd5ae2a5a4b4da3e215e51681425875ba7a2ad6@linux.vnet.ibm.com>
Signed-off-by: Deb McLemore <1938e6bc52a6fb400ff401d42bc5360c2c7aaa30@linux.ibm.com>

open-power/op-test-framework,open-power/op-test-framework,open-power/op-test-framework