misc: rtsx: do not setting OC_POWER_DOWN reg in rtsx_pci_init_ocp()

this power saving action in rtsx_pci_init_ocp() cause INTEL-NUC6 platform
missing card reader
Signed-off-by: NRicky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20200824030006.30033-1-ricky_wu@realtek.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/cardreader/rtsx_pcr.c

@@ -1155,10 +1155,6 @@ void rtsx_pci_init_ocp(struct rtsx_pcr *pcr)
 			rtsx_pci_write_register(pcr, REG_OCPGLITCH,
 				SD_OCP_GLITCH_MASK, pcr->hw_param.ocp_glitch);
 			rtsx_pci_enable_ocp(pcr);
-		} else {
-			/* OC power down */
-			rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN,
-				OC_POWER_DOWN);
 		}
 	}
 }