msm: Camera: Return proper value for msm_camera_qup_i2c_txdata().

msm_camera_qup_i2c_txdata() is not returning proper value.
Due to which session tear down is not happening properly
in case of i2c failure.

CRs-Fixed: 640328
Change-Id: I25cfa10302aeab020ba1710adeed5b860fb7cb3b
Signed-off-by: Vivek Veenam <vveenam@codeaurora.org>

drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c

@@ -69,7 +69,7 @@ static int32_t msm_camera_qup_i2c_txdata(
 	rc = i2c_transfer(dev_client->client->adapter, msg, 1);
 	if (rc < 0)
 		S_I2C_DBG("msm_camera_qup_i2c_txdata faild 0x%x\n", saddr);
-	return 0;
+	return rc;
 }
 
 int32_t msm_camera_qup_i2c_read(struct msm_camera_i2c_client *client,