wlan: Limit the BW of new channel to original BW during ECSA

During ECSA switch, limit the channel BW to the original BW
to which the SAP was started. So device should not set BW
greater than the original BW.

Change-Id: Id8bb45bccd61df224bc12ab3b7ac05d483120bd9
CRs-Fixed: 2143138
diff --git a/CORE/SME/inc/csrInternal.h b/CORE/SME/inc/csrInternal.h
index 3d1fff6..dbb5355 100644
--- a/CORE/SME/inc/csrInternal.h
+++ b/CORE/SME/inc/csrInternal.h
@@ -367,6 +367,7 @@
     tCsrBssid           bssid;    //this is the BSSID for the party we want to join (only use for IBSS or WDS)
     tSirNwType          sirNwType;
     ePhyChanBondState   cbMode;
+    enum eSirMacHTChannelWidth orig_ch_width;
     tSirMacRateSet      operationalRateSet;
     tSirMacRateSet      extendedRateSet;
     tANI_U8             operationChn;