FM: make disable slimbus sequance correct.

1.send disable slimbus command first.(0xfc0e with val 0)
2.inform audio (stopFM API will do this)

Change-Id: I259a0463e3302ae8bd3daa152cb0a7853a82f39e
Signed-off-by: himta ram <hram@codeaurora.org>
1 file changed