Change DRI2 driver name "omap" -> "armsoc"

BUG=chrome-os-partner:10059
TEST=local build, run on ARM

Change-Id: I0d3dac85b66593ee408ed343b8d6e49b639915ec
Reviewed-on: https://gerrit.chromium.org/gerrit/25458
Reviewed-by: Anush Elangovan <anush@google.com>
Tested-by: John Sheu <sheu@chromium.org>
Commit-Ready: John Sheu <sheu@chromium.org>
diff --git a/src/omap_dri2.c b/src/omap_dri2.c
index 3dd73a2..0256595 100644
--- a/src/omap_dri2.c
+++ b/src/omap_dri2.c
@@ -497,7 +497,7 @@
 	DRI2InfoRec info = {
 			.version			= 5,
 			.fd 				= pOMAP->drmFD,
-			.driverName			= "omap",
+			.driverName			= "armsoc",
 			.deviceName			= pOMAP->deviceName,
 			.CreateBuffer		= OMAPDRI2CreateBuffer,
 			.DestroyBuffer		= OMAPDRI2DestroyBuffer,