rtlwifi: rtl8723be: Fix smatch warnings

Smatch reports the following:

drivers/net/wireless/rtlwifi/rtl8723be/fw.c:208 _rtl8723be_fill_h2c_command() warn: variable dereferenced before check 'rtlhal' (see line 69)
drivers/net/wireless/rtlwifi/rtl8723be/hw.c:1732 _rtl8723be_read_adapter_info() error: __builtin_memcpy() '&rtlefuse->efuse_map[0][0]' too small (256 vs 512)

The first one is fixed by removing two pointless tests for NULL pointers.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/rtl8723be/fw.c

@@ -201,14 +201,6 @@ static void _rtl8723be_fill_h2c_command(struct ieee80211_hw *hw, u8 element_id,
 			 "pHalData->last_hmeboxnum  = %d\n",
 			 rtlhal->last_hmeboxnum);
 	}
-	if (!rtlpriv) {
-		pr_err("rtlpriv bad\n");
-		return;
-	}
-	if (!rtlhal) {
-		pr_err("rtlhal bad\n");
-		return;
-	}
 	spin_lock_irqsave(&rtlpriv->locks.h2c_lock, flag);
 	rtlhal->h2c_setinprogress = false;
 	spin_unlock_irqrestore(&rtlpriv->locks.h2c_lock, flag);

drivers/net/wireless/rtlwifi/wifi.h

@@ -1587,7 +1587,7 @@ struct rtl_dm {
 	u64 last_rx_ok_cnt;
 };
 
-#define	EFUSE_MAX_LOGICAL_SIZE			256
+#define	EFUSE_MAX_LOGICAL_SIZE			512
 
 struct rtl_efuse {
 	bool autoLoad_ok;