Add support for HTTPS in SDC sanity/uiSanity tests

New variable: SDC_TEST_HTTPS

Adjusted robot test too and fixed bad naming there - it was not
the SDC BE container but SDC FE.

For this change to work the upstream change in SDC has to be merged
too - or use this only with a local repo and with some proper setup.

+ Added quotes around shell variables

Issue-ID: SDC-2564

Signed-off-by: Petr Ospalý <p.ospaly@partner.samsung.com>
Change-Id: I3db9f2e1c22a539df3b6c356bd91f67f0328cbd7
Signed-off-by: Petr Ospalý <p.ospaly@partner.samsung.com>
diff --git a/plans/sdc/sanity/setup.sh b/plans/sdc/sanity/setup.sh
index 20a8eac..8c0336c 100644
--- a/plans/sdc/sanity/setup.sh
+++ b/plans/sdc/sanity/setup.sh
@@ -15,6 +15,9 @@
 # limitations under the License.
 #
 
+# It can enable HTTPS for SDC sanity tests
+export SDC_TEST_HTTPS="${SDC_TEST_HTTPS:-false}"
+
 # By default all images are from remote upstream registry, this option
 # provides the chance to test locally built images
 export SDC_LOCAL_IMAGES="${SDC_LOCAL_IMAGES:-false}"