hwmon: (g760a) Make rpm_from_cnt static

Function rpm_from_cnt is only used internally so it can be made
static. Make it inline while we're here, for performance reasons
(although hopefully gcc would figure out by itself...)
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: NMartin Michlmayr <tbm@cyrius.com>

drivers/hwmon/g760a.c

@@ -68,7 +68,7 @@ struct g760a_data {
 #define PWM_FROM_CNT(cnt)	(0xff-(cnt))
 #define PWM_TO_CNT(pwm)		(0xff-(pwm))
 
-unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div)
+static inline unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div)
 {
 	return ((val == 0x00) ? 0 : ((clk*30)/(val*div)));
 }