mmc: sdhci-pci: support runtime PM for BYT SD cards

Add support for runtime PM for BYT SD cards.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 701d06d..611331a 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -332,6 +332,8 @@
 };
 
 static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
+	.quirks2	= SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
+	.allow_runtime_pm = true,
 };
 
 /* O2Micro extra registers */