qcacld-3.0: Permit 3 SAP channel switch
During mdm SAP+SAP+SAP case, if 5G band is disabled for modem
N79 band, need all 5G SAP switch to 2G to force scc.
when 5G band is re-enabled, all 5G SAP can switch back to 5G.
Change-Id: Ief7d7c85a7881885bd95c8af6be8d4e428d07041
CRs-Fixed: 2597602