ASoC: msm: get CoPP index based on FE id

Get the CoPP idx based on FE id before sending the channel
mixer settings during runtime.

Signed-off-by: Manoj Kumar N D <quic_mnd@quicinc.com>
Change-Id: I2a0fc517bf3e53523679e3108ca6849d2f96e79d
(cherry picked from commit e9c96f97eda6069576731984a146343ccb32d900)
(cherry picked from commit d6d824a975955075d02e2ed3b51f8ef4d6f202b7)