Sync 'scratch_scripts' with internal CI

Sync the scripts with open-ci commit:
539c151d0cd99a5e6ca6c0e6966f6d8579fe864e

Signed-off-by: Zelalem <zelalem.aweke@arm.com>
Change-Id: Id9acd8b411b97b4b0df4c011350fcbd5e3e3fed1
diff --git a/script/scratch_scripts/initial_clone.sh b/script/scratch_scripts/initial_clone.sh
index 94c9de5..3f96e36 100755
--- a/script/scratch_scripts/initial_clone.sh
+++ b/script/scratch_scripts/initial_clone.sh
@@ -59,7 +59,7 @@
 
 # Clone CI repository and move to the refspec
 git clone -q --depth 1 \
-	http://ssg-sw.cambridge.arm.com/gerrit/pdswinf/ci/pdcs-platforms/platform-ci
+	https://gerrit.oss.arm.com/pdswinf/ci/pdcs-platforms/platform-ci
 
 if [ "$CI_REFSPEC" ]; then
 	# Only recent Git versions support fetching refs via. commit IDs.