Update release repository pin

Change-Id: I138e09478c9ab9f8ba3ecc5de696a1ff4a05e797
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3788
Tested-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: SiCong Li <sicong.li@arm.com>
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..13e01b0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "release_repository"]
+	path = release_repository
+	url = ssh://eu-gerrit-1.euhpc.arm.com:29418/VisualCompute/Github/ComputeLibrary
+	branch = master
diff --git a/release_repository b/release_repository
new file mode 160000
index 0000000..6a7771e
--- /dev/null
+++ b/release_repository
@@ -0,0 +1 @@
+Subproject commit 6a7771e460abeac7d401d6d38a0fcf0a0d2c3cbe