sdhci: force high speed capability on some controllers

Some high speed capable controllers forget to set the high speed
capability bit. Make sure we enable the functionality anyway.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index fcb14c2..0a84f10 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -144,7 +144,8 @@
 			  SDHCI_QUIRK_32BIT_DMA_SIZE |
 			  SDHCI_QUIRK_32BIT_ADMA_SIZE |
 			  SDHCI_QUIRK_RESET_AFTER_REQUEST |
-			  SDHCI_QUIRK_BROKEN_SMALL_PIO;
+			  SDHCI_QUIRK_BROKEN_SMALL_PIO |
+			  SDHCI_QUIRK_FORCE_HIGHSPEED;
 	}
 
 	/*