frameworks:audio: Correct accessory detection at power up

In the init loop, when all the accessories are detected the
state of previous accessory is overridden by the state of the
next accessory. Adding the one line change keeps the state of
all the detected accessories intact.

Change-Id: I4347d8daa27800426dcfb23aac199bed4add67de
Signed-off-by: Praveen Bharathi <pbharathi@motorola.com>