audio: scaletempo output not stable. [1/1]

PD#RK-1643

Problem:
scaletempo output not stable at X1 rate.

Solution:
when rate change to x1 we need fixed the search point with the current
to avoid the output vary and glitch..

Verify:
Yocto: :AP222

Change-Id: I9b7165843ba9c90bc10a4db377da05fdd2b471d2
Signed-off-by: xingri.gao <xingri.gao@amlogic.com>
(cherry picked from commit b8715839975e2f17a4f572142c1c2650148de500)
2 files changed