ASoC: msm: qdsp6v2: fix broken AFE memory unmap

AFE memory map receives memory map handle from ADSP and needs to pass the
handle when requests memory unmap.  Current afe driver incorrectly sends
physical memory address instead so memory unmap always fails.
Pass memory map handle to fix broken AFE memory unmap command.

CRs-fixed: 510179
Change-Id: I3c8b957b7953379bc96ba6f1de317eddf7783e8d
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>