ASoC: wcd9335: Fix register sequence for CPE configuration

Currently during disabling the EC PP path (Echo cancellation Ping
Pong), the driver is also disabling other data routing controls in
the register. This is causing existing voice activation use-case
using CPE (Codec Processing Engine) to fail as there is no valid
data that is sent to the processing engine. Fix the register sequence
to avoid this issue.

CRs-fixed: 1034169
Change-Id: I2e2b50aeb770ca523cf70e2c0768e38ee56e39eb
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>