autoconf: Enable config for wdsp-glink/avtimer

Enable the configs for WCD DSP Glink and avtimer drivers.
Remove the CDSP Loader config as it is not audio related.

Change-Id: Ic6101e106c1e1d91bece6f53d1572507570b6b6f
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>