[PATCH] rtw88: mac: Make some founctions static

[ChenTao]

Fix the following warning:

vers/net/wireless/realtek/rtw88/mac.c:699:5: warning:
symbol '__rtw_download_firmware' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/mac.c:863:5: warning:
symbol '__rtw_download_firmware_legacy' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: ChenTao <chentao107@xxxxxxxxxx>
---
 drivers/net/wireless/realtek/rtw88/mac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c
index 645207a01525..f5bf5bab9454 100644
--- a/drivers/net/wireless/realtek/rtw88/mac.c
+++ b/drivers/net/wireless/realtek/rtw88/mac.c
@@ -696,7 +696,7 @@ static void download_firmware_end_flow(struct rtw_dev *rtwdev)
 	rtw_write16(rtwdev, REG_MCUFW_CTRL, fw_ctrl);
 }
 
-int __rtw_download_firmware(struct rtw_dev *rtwdev, struct rtw_fw_state *fw)
+static int __rtw_download_firmware(struct rtw_dev *rtwdev, struct rtw_fw_state *fw)
 {
 	struct rtw_backup_info bckp[DLFW_RESTORE_REG_NUM];
 	const u8 *data = fw->firmware->data;
@@ -860,7 +860,7 @@ static int download_firmware_validate_legacy(struct rtw_dev *rtwdev)
 	return -EINVAL;
 }
 
-int __rtw_download_firmware_legacy(struct rtw_dev *rtwdev, struct rtw_fw_state *fw)
+static int __rtw_download_firmware_legacy(struct rtw_dev *rtwdev, struct rtw_fw_state *fw)
 {
 	int ret = 0;
 
-- 
2.22.0