Revert "Increase audio volume on all outputs"

This reverts commit 9251d4e0a797faca0b257867cf6a2d2a64a10b4e.

Change-Id: Ib1f1a7689492fbc1e19b09600bcd7708185b7d9e
qdsp5v2: Increase AFE_VOLUME_UNITY

It increases volume by 1,75 multiplier on all channels

Change-Id: I3ea1a801d34fe49d27bde48c0bf860761f71fe03