Add EFFECT_CMD_SET_PARAM parameter checking to Downmix and Reverb

Bug: 63662938
Bug: 63526567
Test: Added CTS tests

Change-Id: I8ed398cd62a9f461b0590e37f593daa3d8e4dbc4
(cherry picked from commit 804632afcdda6e80945bf27c384757bda50560cb)
