mfd: rtsx: Fix sparse non static symbol warning

Fixes the following sparse warning:

drivers/mfd/rtl8411.c:473:6: warning:
symbol 'rtl8411_init_common_params' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/rtl8411.c

···
 	0,
 };
 
-void rtl8411_init_common_params(struct rtsx_pcr *pcr)
+static void rtl8411_init_common_params(struct rtsx_pcr *pcr)
 {
 	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
 	pcr->num_slots = 2;