msm: mhi_dev: Add MHI device driver snapshot

Modem host interface (MHI) device driver is
used to communicate between host and device
over PCIe.

This snapshot is taken as of msm-4.4
'commit <4f1f60e00d6a> ("Merge "ARM: dts:
msm: add nt35597 sharp panel node for sdm660"")'.

Change-Id: I7a396218003b7efadbdccf158ecf036dfb5ce845
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
diff --git a/drivers/platform/msm/Makefile b/drivers/platform/msm/Makefile
index 85c4673..e2fdfb6 100644
--- a/drivers/platform/msm/Makefile
+++ b/drivers/platform/msm/Makefile
@@ -5,7 +5,6 @@
 obj-$(CONFIG_IPA) += ipa/
 obj-$(CONFIG_IPA3) += ipa/
 obj-$(CONFIG_SPS) += sps/
-
 obj-$(CONFIG_QPNP_COINCELL) += qpnp-coincell.o
 obj-$(CONFIG_QPNP_REVID) += qpnp-revid.o
-
+obj-$(CONFIG_MSM_MHI_DEV) += mhi_dev/