wlan: Support to disable 11ac dynamically.

For some of the countries device should not be in 11ac mode.
When new country code is set through COUNTRY IOCTL,
host driver will check whether 11ac needs to be disabled for this
country and it changes mode accordingly which would take effect in
successive association request unless driver is unloaded.

CRs-fixed: 473375
Change-Id: I427e6a1052958ed8ae638935fd7b5539715e6c1e
diff --git a/CORE/SME/inc/csrApi.h b/CORE/SME/inc/csrApi.h
index 2f195cf..711292a 100644
--- a/CORE/SME/inc/csrApi.h
+++ b/CORE/SME/inc/csrApi.h
@@ -927,6 +927,7 @@
     tCsrCcxCckmInfo ccxCckmInfo;
     tANI_BOOLEAN    isCCXAssoc;
 #endif
+    tANI_U32 dot11Mode;
 }tCsrRoamConnectedProfile;