E2E: Per Core Runtime Tuning Test automation (openshift#509)

Skip tests where we create a guaranteed pod with
powersave and performance annotations as they requires
baremetal with powermanagement settings in BIOS
make changes required for ginkgov2



Add new function to check harware capability



remove hardcoded online cpu count.



Minor fix reduce the total number of cpus from 80 to 32

Also add the checkHardwareCapability to PerPodPowermanagement
test cases instead of offline cpu test cases



Use constant for totalCpus



Skip the tests if number of online cpus is not more than 32

Signed-off-by: Niranjan M.R <mrniranjan@redhat.com>
Co-authored-by: Niranjan M.R <mrniranjan@redhat.com>