mmc: sdhci-iproc: Disable preset values for BCM2835

According to the BCM2835 datasheet there are no preset value registers.
This wasn't an issue before, because we didn't propagate 1.8V support.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-iproc.c

@@ -214,6 +214,7 @@ static const struct sdhci_pltfm_data sdhci_bcm2835_pltfm_data = {
 		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
 		  SDHCI_QUIRK_MISSING_CAPS |
 		  SDHCI_QUIRK_NO_HISPD_BIT,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	.ops = &sdhci_iproc_32only_ops,
 };