PRNG: Device tree entry for qrng device.

Cleanup platorm device entry & add device tree entry

Change-Id: I5bde944d63276a3aaf00b7415066963027f11249
Signed-off-by: Hariprasad Dhalinarasimha <hnamgund@codeaurora.org>
diff --git a/drivers/char/hw_random/msm_rng.c b/drivers/char/hw_random/msm_rng.c
index 974b77e..7e6670d 100644
--- a/drivers/char/hw_random/msm_rng.c
+++ b/drivers/char/hw_random/msm_rng.c
@@ -231,12 +231,19 @@
 	return 0;
 }
 
+static struct of_device_id qrng_match[] = {
+	{	.compatible = "qcom,msm-rng",
+	},
+	{}
+};
+
 static struct platform_driver rng_driver = {
 	.probe      = msm_rng_probe,
 	.remove     = __devexit_p(msm_rng_remove),
 	.driver     = {
 		.name   = DRIVER_NAME,
 		.owner  = THIS_MODULE,
+		.of_match_table = qrng_match,
 	}
 };