soc: qcom: msm_smd: Add snapshot of Shared memory driver

This is a snapshot of the SMD driver as of msm-4.4 commit
<bb3bb010ec74> (Merge "ASoC: wcd9xxx: restrict debugfs permission")

Shared memory data[SMD] drivers provides data communication to
remote peripherals such as Modem and ADSP over shared memory.

CRs-Fixed: 2144497
Change-Id: I50ded677a10dae3910b8369e6c17f175dda3edf5
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 1bdc7f8..882fff9 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -98,3 +98,4 @@
 
 # GPIOLIB helpers for modem control lines
 obj-$(CONFIG_SERIAL_MCTRL_GPIO)	+= serial_mctrl_gpio.o
+obj-$(CONFIG_SERIAL_MSM_SMD)	+= msm_smd_tty.o