wlan: Add new DRIVER command SET_FCC_CHANNEL.

Due to airplane mode and subsequent change of country, there
may be a time gap till a new country code gets programmed into
the WLAN sub-system. In order to avoid FCC violation during this
period, provide command to enable/disable channels 12/13.

Change-Id: I38ca9d31edd3e5fb74e41f888efbe2c53f553afa
CRs-Fixed: 855016
diff --git a/CORE/SME/inc/csrInternal.h b/CORE/SME/inc/csrInternal.h
index 4df01a3..b5be859 100644
--- a/CORE/SME/inc/csrInternal.h
+++ b/CORE/SME/inc/csrInternal.h
@@ -804,6 +804,7 @@
 
     csrScanCompleteCallback callback11dScanDone;
     eCsrBand  scanBandPreference;  //This defines the band perference for scan
+    bool fcc_constraint;
 }tCsrScanStruct;