If the SAP is moved to DFS channel on 5G by Pre-CAC SAP interface,
Pre-CAC interface will be stopped but not deleted. Then the
driver will have two sap context objects. When the Radar event
comes to SAP interface, the existing APIs
(like sap_is_conc_sap_doing_scc_dfs) will still check Pre-CAC SAP
context to get concurrency status without checking Pre-CAC SAP's
status even though the Pre-CAC SAP is inactive. It will get wrong
result and finally cause the current SAP stuck in Radar detected
DFS channel.
Fix by check sap_context state active or not in sap concurrency
check API.
Change-Id: I5adf9e6a3ac7b45983fb627c99d9d92fe5815751
CRs-Fixed: 3127425
4fc0500019