video: msm: change normal operation prints to pr_debug

There is no need to print every time an mdp4 overlay pipe is allocated
or freed. Change these prints to pr_debugs so they can still be used for
debugging if necessary.

Change-Id: I91ba245ce54ab8a963539cfdea6d8d92efaf52a4
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
diff --git a/drivers/video/msm/mdp4_util.c b/drivers/video/msm/mdp4_util.c
index a4a5b06..d82672e 100644
--- a/drivers/video/msm/mdp4_util.c
+++ b/drivers/video/msm/mdp4_util.c
@@ -2604,14 +2604,14 @@
 	if (!IS_ERR_OR_NULL(mfd->iclient)) {
 		if (!IS_ERR_OR_NULL(buf->ihdl)) {
 			ion_free(mfd->iclient, buf->ihdl);
-			pr_info("%s:%d free writeback imem\n", __func__,
+			pr_debug("%s:%d free writeback imem\n", __func__,
 				__LINE__);
 			buf->ihdl = NULL;
 		}
 	} else {
 		if (buf->phys_addr) {
 			free_contiguous_memory_by_paddr(buf->phys_addr);
-			pr_info("%s:%d free writeback pmem\n", __func__,
+			pr_debug("%s:%d free writeback pmem\n", __func__,
 				__LINE__);
 		}
 	}