Previously, if force SCC is enabled and Standalone SAP starts
on non-DFS channel, it starts with master mode Disable. If it
is switched to DFS channel it will switch without CAC.
As a fix, if SAP is started on non-DFS channel with force SCC,
don't allow it to switch to DFS channel if master mode is disabled.
Change-Id: I1822f67a5480d6c16fa980c9c6b262341af7c2de
CRs-Fixed: 2827237