soc: qcom: slatecom: set btss and dspss states

set ready and error states for btsss and dspss properly.
define buffer size to hold the bt and dsp state.

Change-Id: I5fd8378547efe730ca2094a44039ff1d6e28ec1d
Signed-off-by: Praveen Koya <pkoya@codeaurora.org>