wifi: extending framework restart waiting time

10s is not enough for low-end devices, extending waiting time to
avoid false alarm for low-end devices.

Bug: 201184673
Test: atest VtsHalWifiSupplicantP2pV1_4TargetTest
Change-Id: I9baa53a462b97738e6dc471cf06c2b9230b92c1c
1 file changed