3rdparty: move to 3rdparty/blobs

There's now room for other repositories under 3rdparty.

Change-Id: I51b02d8bf46b5b9f3f8a59341090346dca7fa355
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10109
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/.gitmodules b/.gitmodules
index 9508b5a..cf32923 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,5 +1,5 @@
 [submodule "3rdparty"]
-	path = blobs
+	path = 3rdparty/blobs
 	url = ../blobs.git
 	update = none
 	ignore = dirty