Adding P1, P2 and P3 priority config files for MIGRATION Test Bucket! (#378)

Created new config files divided as P1, P2 & P3 priorities. I
have added all the passed tests to run and for now removed the
FAILED, CANCELLED and ERRORED tests. Mentioned those tests as "no"
in the config files.

Signed-off-by: Anushree-Mathur <anushree.mathur@linux.ibm.com>
Co-authored-by: Anushree-Mathur <anushree.mathur@linux.ibm.com>

Author: Anushree-Mathur