wlan: Checkpatch fixes for WLAN prima LA driver

The diff contains fixes for the following 2 checkpatch errors:

1) WARNING: __packed is preferred over __attribute__((packed))

2) WARNING: Statements terminations use 1 semicolon

Change-Id: I711d060af60b09b680daca675c79eea78c9009b9
CR-Fixed: NA
diff --git a/CORE/HDD/inc/wlan_hdd_main.h b/CORE/HDD/inc/wlan_hdd_main.h
index 9a4909c..ffe34fb 100644
--- a/CORE/HDD/inc/wlan_hdd_main.h
+++ b/CORE/HDD/inc/wlan_hdd_main.h
@@ -245,7 +245,7 @@
    WAPI_AUTH_MODE_OPEN = 0,
    WAPI_AUTH_MODE_PSK = 1,
    WAPI_AUTH_MODE_CERT
-} __attribute__((packed));
+} __packed;
 typedef enum _WAPIAuthMode WAPIAuthMode;
 
 /** WAPI Work mode structure definition */
@@ -255,7 +255,7 @@
 struct _WAPI_FUNCTION_MODE
 {
    unsigned char wapiMode;
-}__attribute__((packed));
+}__packed;
 
 typedef struct _WAPI_FUNCTION_MODE WAPI_FUNCTION_MODE;
 
@@ -278,7 +278,7 @@
    v_U16_t     wapiCability;
    v_U16_t     bkidCount;
    WAPI_BKID   bkidList[MAX_NUM_BKIDS];
-} __attribute__((packed));
+} __packed;
 
 typedef struct _WAPI_AssocInfo WAPI_AssocInfo;
 typedef struct _WAPI_AssocInfo *pWAPI_IEAssocInfo;
@@ -288,7 +288,7 @@
 {
    PAIRWISE_KEY, //0
    GROUP_KEY     //1
-}__attribute__((packed));
+}__packed;
 typedef enum _WAPIKeyType WAPIKeyType;
 
 /** WAPI KEY Direction definition */
@@ -298,7 +298,7 @@
    Rx,
    Tx,
    Rx_Tx
-}__attribute__((packed));
+}__packed;
 
 typedef enum _KEY_DIRECTION WAPI_KEY_DIRECTION;
 
@@ -314,7 +314,7 @@
    int             wpickLen;
    v_U8_t          wpick[MAX_WPI_KEY_LENGTH];
    v_U8_t          pn[MAX_NUM_PN];        /*reserved for future use*/
-}__attribute__((packed));
+}__packed;
 
 typedef struct WLAN_WAPI_KEY WLAN_WAPI_KEY;
 typedef struct WLAN_WAPI_KEY *pWLAN_WAPI_KEY;
@@ -330,7 +330,7 @@
    v_U32_t          length;
    v_U32_t          BKIDCount;
    WAPI_BKID        BKID[1];
-}__attribute__((packed));
+}__packed;
 
 typedef struct _WLAN_BKID_LIST WLAN_BKID_LIST;
 typedef struct _WLAN_BKID_LIST *pWLAN_BKID_LIST;
@@ -343,7 +343,7 @@
    v_BOOL_t    fIsWapiSta;
    v_MACADDR_t cachedMacAddr;
    v_UCHAR_t   wapiAuthMode;
-}__attribute__((packed));
+}__packed;
 typedef struct hdd_wapi_info_s hdd_wapi_info_t;
 #endif /* FEATURE_WLAN_WAPI */