rtlwifi: fill FW version and subversion

This commit fills FW version information of RTL8188EE and RTL8723, so
the btcoex can cooperate with FW correctly.
Also, we can display this version in debugfs.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c

@@ -141,6 +141,8 @@ int rtl88e_download_fw(struct ieee80211_hw *hw,
 		return 1;
 
 	pfwheader = (struct rtlwifi_firmware_header *)rtlhal->pfirmware;
+	rtlhal->fw_version = le16_to_cpu(pfwheader->version);
+	rtlhal->fw_subversion = pfwheader->subversion;
 	pfwdata = rtlhal->pfirmware;
 	fwsize = rtlhal->fwsize;
 	RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG,

drivers/net/wireless/realtek/rtlwifi/rtl8723com/fw_common.c

@@ -200,6 +200,8 @@ int rtl8723_download_fw(struct ieee80211_hw *hw,
 		return 1;
 
 	pfwheader = (struct rtlwifi_firmware_header *)rtlhal->pfirmware;
+	rtlhal->fw_version = le16_to_cpu(pfwheader->version);
+	rtlhal->fw_subversion = pfwheader->subversion;
 	pfwdata = rtlhal->pfirmware;
 	fwsize = rtlhal->fwsize;