ASoC: msm: update SRS Tru media control structure with rreg initialization

When SRS Tru media topology is enabled the mixer controls set from
userspace are not sent to driver as the validation fails with
the missing field initialization in the structure. Update the same
to receive the SRS parameters from userspace

Change-Id: Ia2bf800a540adf3bcc2a99fc6e0d9b043c826272
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>