hwmon: (k10temp) Make function get_raw_temp static

The function get_raw_temp is local to the source and does not need to
be in global scope, so make it static.

Cleans up sparse warning:
drivers/hwmon/k10temp.c:149:14: warning: symbol 'get_raw_temp' was not
declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/k10temp.c

@@ -146,7 +146,7 @@ static void read_tempreg_nb_f17(struct pci_dev *pdev, u32 *regval)
 		     F17H_M01H_REPORTED_TEMP_CTRL_OFFSET, regval);
 }
 
-unsigned int get_raw_temp(struct k10temp_data *data)
+static unsigned int get_raw_temp(struct k10temp_data *data)
 {
 	unsigned int temp;
 	u32 regval;