HDM: Resolve concurrent access issue - defer execution

Bug: 154582017
CRs-Fixed: 2677071
Test: atest com.android.server.wifi
Test: Unable to repro crash with the shell command to repro the scenario.
Change-Id: Ibfa2b7a23e5eadd42fe5a455890f7446e772f5ac
(cherry picked from commit 60f54981717ff8d0a5ad02f7de487daf0b16e690)
1 file changed