dsp: Reduce apm_ready retry sleep to 50ms
Reduce apm_ready retry sleep to 50ms, so that it will try again to
get the amp state after 50ms instead of 300ms.
Change-Id: Iea92dc3628afdb2b6735951793d160c3d6d48ce6
Signed-off-by: Ritu Sharma <[email protected]>