mmc: msm_sdcc: Enable write packing capability

The write packing allows sending several requests in a single command
to the card and increases the eMMC performance in sequential write
operations.

Change-Id: I827093d6d950d4735b94b9d730e654b26441ff90
Signed-off-by: Maya Erez <merez@codeaurora.org>
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index e6405ab..e3e9193 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -5019,6 +5019,7 @@
 		mmc->caps |= (MMC_CAP_SET_XPC_330 | MMC_CAP_SET_XPC_300 |
 				MMC_CAP_SET_XPC_180);
 
+	mmc->caps2 |= MMC_CAP2_PACKED_WR;
 	mmc->caps2 |= (MMC_CAP2_BOOTPART_NOACC | MMC_CAP2_DETECT_ON_ERR);
 	if (pdev->dev.of_node) {
 		if (of_get_property((&pdev->dev)->of_node,