diag: dci: Synchronize dci mempool buffers alloc and free

Prevent possible race condition while freeing dci mempool buffers
by properly synchronizing allocation and free.

Change-Id: Iac8b9b9bd8a475d519a644d555d87b9101b9b6b8
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>
2 files changed