regulator: cpr3: Use default step_quot during corner switch

Configure CPR4/h controllers to reset to default step_quot on each
loop_en = 0 transition. This enables the CPR controller to use the
default step_quot during a corner switch and then later switch to
the run-time calibrated step_quot. Without this feature enabled,
there is a chance for the CPR controller to use the run-time
calibrated step_quot of lower modes for higher modes that sometimes
can lead to closed-loop voltage getting stuck at open-loop voltage.

CRs-Fixed: 2003482
Change-Id: Ic738f6205a2e2030202abd811e94bd47240bad43
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>