mmc: remove BYTEBLOCK capability

Remove the BYTEBLOCK capability and let the broken hosts fail the
requests with -EINVAL instead.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index 04458c3..e33c123 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -963,7 +963,7 @@
 	mmc->f_min = 150000;
 	mmc->f_max = CLK_RATE/2;
 	mmc->ocr_avail = MMC_VDD_32_33;
-	mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_BYTEBLOCK;
+	mmc->caps = MMC_CAP_4_BIT_DATA;
 
 	/* MMC core transfer sizes tunable parameters */
 	mmc->max_hw_segs = 64;