New platform uses RBCPR hardware feature, with that voting for absolute voltage of VDD CX is not required. Hence vote for corner of VDD CX which uses nominal corner voltage on VDD CX. CRs-Fixed: 355399 Change-ID: I22a73c5a439c98195b907ff3d032eb675a557612 Signed-off-by: Mayank Rana <mrana@codeaurora.org>