[media] v4l: Documentation: change path of video drivers

due to structure change for video drivers, change the
description with correct path.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/video4linux/omap3isp.txt b/Documentation/video4linux/omap3isp.txt
index 5dd1439..b9a9f83 100644
--- a/Documentation/video4linux/omap3isp.txt
+++ b/Documentation/video4linux/omap3isp.txt
@@ -12,7 +12,7 @@
 ============
 
 This file documents the Texas Instruments OMAP 3 Image Signal Processor (ISP)
-driver located under drivers/media/video/omap3isp. The original driver was
+driver located under drivers/media/platform/omap3isp. The original driver was
 written by Texas Instruments but since that it has been rewritten (twice) at
 Nokia.