Start point for track sink frame map

When start the track, add current track sink frame info to mFrameMap. If
the HAL returns a position that is smaller than the first written frame,
the timestamp will be interpolated instead of using a larger value
(first written frame's position).

Bug: 238936281
Test: On device
Change-Id: Ib816b62a5724a0f48a449c2fdfdaa0b6936d710e
Merged-In: Ib816b62a5724a0f48a449c2fdfdaa0b6936d710e
(cherry picked from commit 6cfb5938)