coresight: modify coresight drivers to use reg-names property

Modify coresight drivers to perform resource lookup by name. The
coresight drivers now use the reg-names property specified in dt
nodes to lookup for resources.

Change-Id: I986f9687be81706d2424e288b9875c3a93e12d11
Signed-off-by: Aparna Das <adas@codeaurora.org>
diff --git a/drivers/coresight/coresight-csr.c b/drivers/coresight/coresight-csr.c
index 4774c76..988d1c9 100644
--- a/drivers/coresight/coresight-csr.c
+++ b/drivers/coresight/coresight-csr.c
@@ -158,7 +158,7 @@
 	drvdata->dev = &pdev->dev;
 	platform_set_drvdata(pdev, drvdata);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "csr-base");
 	if (!res)
 		return -ENODEV;