qcacmn: Avoid CH_WIDTH_320MHZ dependency on 11BE define

CH_WIDTH_320MHZ definition is in 11BE define currently and it's
causing duplicate code in 11BE supported/unsupported cases.
Definition need not be in 11BE define as it doesn't cause any
impact on memory.

Change-Id: I996aad941bef33eef6527c4c34c5b9efd75d9b84
CRs-Fixed: 3246577

umac/cmn_services/inc/wlan_cmn.h

@@ -589,9 +589,7 @@ enum phy_ch_width {
 	CH_WIDTH_80P80MHZ,
 	CH_WIDTH_5MHZ,
 	CH_WIDTH_10MHZ,
-#ifdef WLAN_FEATURE_11BE
 	CH_WIDTH_320MHZ,
-#endif
 	CH_WIDTH_INVALID,
 	CH_WIDTH_MAX
 };