qcacld-3.0: Enhance conc-info del/restore for 3-SAP concurrency
When all vdevs in same mode(like SAP here),
MAX_NUMBER_OF_CONC_CONNECTIONS vdevs deleted but failed
to be restored as count sanity.
Vdev count of MAX_NUMBER_OF_CONC_CONNECTIONS is also valid,
and should be restored.
Change-Id: I2ef6c9a5b1ef96098e14b6a57ad8006d806309b0
CRs-Fixed: 2988669