Frameworks: Fix ap list issue while wifi turns on

Decrease the sleep time to resolve the synchronization issue
which happens between wpa_supplicant and Wifimonitor thread
when wifi turns on.

CRs-Fixed: 673012

Change-Id: I4e2414301ace26a26351b6c1345e1ff6e7ab49a9
Merge "Frameworks: Fix ap list issue while wifi turns on" into du44