qcacld-3.0: Don't reset connecting TDLS peer to idle state

It resets connecting TDLS peer to idle state, and then won't send
peer delete command to FW, which cause FW break down. So check link
status and avoid to reset connecting TDLS peer to idle state.

Change-Id: I8e8c883c6a517d516f496790350324a4257c9325
CRs-Fixed: 2726207