When we read data out of the sender's fifo, we need to advance the sender's
tail pointer, not the receiver's.
Signed-off-by: NHaley Teng <Haley_Teng@htc.com>
Acked-by: NDima Zavin <dima@android.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>