mwifiex: save and copy AP's VHT capability info correctly

While preparing association request, intersection of device's
VHT capability information and corresponding field advertised
by AP is used.

This patch fixes a couple errors while saving and copying vht_cap
and vht_oper fields from AP's beacon.

Cc: <stable@vger.kernel.org> # 3.9+
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/11ac.c

@@ -189,8 +189,7 @@ int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
 		vht_cap->header.len  =
 				cpu_to_le16(sizeof(struct ieee80211_vht_cap));
 		memcpy((u8 *)vht_cap + sizeof(struct mwifiex_ie_types_header),
-		       (u8 *)bss_desc->bcn_vht_cap +
-		       sizeof(struct ieee_types_header),
+		       (u8 *)bss_desc->bcn_vht_cap,
 		       le16_to_cpu(vht_cap->header.len));
 
 		mwifiex_fill_vht_cap_tlv(priv, vht_cap, bss_desc->bss_band);

drivers/net/wireless/mwifiex/scan.c

@@ -2101,11 +2101,11 @@ mwifiex_save_curr_bcn(struct mwifiex_private *priv)
 			 curr_bss->ht_info_offset);
 
 	if (curr_bss->bcn_vht_cap)
-		curr_bss->bcn_ht_cap = (void *)(curr_bss->beacon_buf +
+		curr_bss->bcn_vht_cap = (void *)(curr_bss->beacon_buf +
 						 curr_bss->vht_cap_offset);
 
 	if (curr_bss->bcn_vht_oper)
-		curr_bss->bcn_ht_oper = (void *)(curr_bss->beacon_buf +
+		curr_bss->bcn_vht_oper = (void *)(curr_bss->beacon_buf +
 						  curr_bss->vht_info_offset);
 
 	if (curr_bss->bcn_bss_co_2040)